./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS --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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- 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-8393723 [2022-11-19 08:09:27,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:09:27,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:09:27,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:09:27,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:09:27,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:09:27,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:09:27,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:09:27,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:09:27,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:09:27,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:09:27,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:09:27,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:09:27,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:09:27,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:09:27,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:09:27,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:09:27,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:09:27,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:09:27,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:09:28,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:09:28,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:09:28,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:09:28,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:09:28,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:09:28,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:09:28,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:09:28,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:09:28,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:09:28,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:09:28,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:09:28,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:09:28,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:09:28,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:09:28,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:09:28,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:09:28,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:09:28,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:09:28,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:09:28,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:09:28,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:09:28,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:09:28,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:09:28,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:09:28,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:09:28,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:09:28,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:09:28,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:09:28,079 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:09:28,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:09:28,079 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:09:28,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:09:28,080 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:09:28,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:09:28,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:09:28,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:09:28,094 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:09:28,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:09:28,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:09:28,095 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:09:28,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:09:28,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:09:28,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:09:28,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:09:28,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:09:28,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:09:28,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:09:28,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:09:28,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:09:28,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:09:28,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:09:28,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:28,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:09:28,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:09:28,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:09:28,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:09:28,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:09:28,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:09:28,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:09:28,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:09:28,106 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_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-11-19 08:09:28,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:09:28,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:09:28,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:09:28,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:09:28,458 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:09:28,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-19 08:09:28,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/b4c17927e/be44c2a295ed4006a5535626b4148ce7/FLAG1215e3291 [2022-11-19 08:09:30,010 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:09:30,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-19 08:09:30,123 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/b4c17927e/be44c2a295ed4006a5535626b4148ce7/FLAG1215e3291 [2022-11-19 08:09:30,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/b4c17927e/be44c2a295ed4006a5535626b4148ce7 [2022-11-19 08:09:30,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:09:30,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:09:30,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:30,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:09:30,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:09:30,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:30" (1/1) ... [2022-11-19 08:09:30,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46922ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:30, skipping insertion in model container [2022-11-19 08:09:30,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:30" (1/1) ... [2022-11-19 08:09:30,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:09:30,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:09:34,629 WARN L234 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_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-19 08:09:47,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:47,308 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:09:47,701 WARN L234 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_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-19 08:09:49,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:50,219 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:09:50,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50 WrapperNode [2022-11-19 08:09:50,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:50,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:50,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:09:50,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:09:50,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:50,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,001 INFO L138 Inliner]: procedures = 895, calls = 20718, calls flagged for inlining = 343, calls inlined = 11, statements flattened = 3202 [2022-11-19 08:09:51,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:51,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:09:51,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:09:51,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:09:51,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:09:51,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:09:51,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:09:51,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:09:51,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (1/1) ... [2022-11-19 08:09:51,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:51,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:51,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:09:51,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:09:51,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:09:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:09:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:09:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:09:51,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-19 08:09:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-19 08:09:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-11-19 08:09:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-11-19 08:09:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-19 08:09:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-19 08:09:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:09:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-19 08:09:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-19 08:09:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-11-19 08:09:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-11-19 08:09:51,298 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-11-19 08:09:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-11-19 08:09:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:09:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:09:51,960 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:09:51,963 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:09:52,169 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 08:12:17,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-11-19 08:12:17,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-11-19 08:12:17,553 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:12:18,389 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:12:18,389 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:12:18,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:18 BoogieIcfgContainer [2022-11-19 08:12:18,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:12:18,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:12:18,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:12:18,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:12:18,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:09:30" (1/3) ... [2022-11-19 08:12:18,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645c197d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:12:18, skipping insertion in model container [2022-11-19 08:12:18,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:50" (2/3) ... [2022-11-19 08:12:18,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645c197d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:12:18, skipping insertion in model container [2022-11-19 08:12:18,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:18" (3/3) ... [2022-11-19 08:12:18,400 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-19 08:12:18,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:12:18,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:12:18,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:12:18,475 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;@22a5c800, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:12:18,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:12:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 31 states have internal predecessors, (39), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:12:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:12:18,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:18,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:18,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:18,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1288771544, now seen corresponding path program 1 times [2022-11-19 08:12:18,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:18,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555473978] [2022-11-19 08:12:18,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:18,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:19,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:19,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555473978] [2022-11-19 08:12:19,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555473978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:19,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:19,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:12:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117167202] [2022-11-19 08:12:19,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:19,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:12:19,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:19,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:12:19,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:19,969 INFO L87 Difference]: Start difference. First operand has 43 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 31 states have internal predecessors, (39), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:22,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:22,310 INFO L93 Difference]: Finished difference Result 116 states and 155 transitions. [2022-11-19 08:12:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:12:22,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:12:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:22,329 INFO L225 Difference]: With dead ends: 116 [2022-11-19 08:12:22,330 INFO L226 Difference]: Without dead ends: 70 [2022-11-19 08:12:22,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:22,337 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 34 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:22,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 88 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:12:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-19 08:12:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2022-11-19 08:12:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 10 states have call successors, (10), 9 states have call predecessors, (10), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:12:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2022-11-19 08:12:22,393 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 8 [2022-11-19 08:12:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:22,394 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2022-11-19 08:12:22,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2022-11-19 08:12:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:12:22,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:22,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:22,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:12:22,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash 787103744, now seen corresponding path program 1 times [2022-11-19 08:12:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:22,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981958709] [2022-11-19 08:12:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:23,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:23,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981958709] [2022-11-19 08:12:23,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981958709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:23,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:23,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:12:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99475211] [2022-11-19 08:12:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:23,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:12:23,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:12:23,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:23,437 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:25,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:25,710 INFO L93 Difference]: Finished difference Result 118 states and 151 transitions. [2022-11-19 08:12:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:12:25,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 08:12:25,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:25,713 INFO L225 Difference]: With dead ends: 118 [2022-11-19 08:12:25,713 INFO L226 Difference]: Without dead ends: 55 [2022-11-19 08:12:25,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:25,715 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 9 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:25,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 71 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:12:25,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-19 08:12:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-11-19 08:12:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:12:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2022-11-19 08:12:25,734 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 17 [2022-11-19 08:12:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:25,736 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2022-11-19 08:12:25,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2022-11-19 08:12:25,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:12:25,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:25,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:25,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:12:25,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:25,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:25,739 INFO L85 PathProgramCache]: Analyzing trace with hash 934745558, now seen corresponding path program 1 times [2022-11-19 08:12:25,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:25,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516094828] [2022-11-19 08:12:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:25,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:12:28,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:12:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:12:29,727 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:12:29,727 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:12:29,729 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:12:29,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:12:29,735 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-19 08:12:29,739 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:12:29,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:12:29 BoogieIcfgContainer [2022-11-19 08:12:29,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:12:29,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:12:29,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:12:29,870 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:12:29,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:18" (3/4) ... [2022-11-19 08:12:29,874 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:12:29,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:12:29,878 INFO L158 Benchmark]: Toolchain (without parser) took 179443.09ms. Allocated memory was 117.4MB in the beginning and 788.5MB in the end (delta: 671.1MB). Free memory was 47.8MB in the beginning and 405.6MB in the end (delta: -357.8MB). Peak memory consumption was 312.2MB. Max. memory is 16.1GB. [2022-11-19 08:12:29,878 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:12:29,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 19786.16ms. Allocated memory was 117.4MB in the beginning and 471.9MB in the end (delta: 354.4MB). Free memory was 47.4MB in the beginning and 157.6MB in the end (delta: -110.2MB). Peak memory consumption was 278.1MB. Max. memory is 16.1GB. [2022-11-19 08:12:29,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 782.12ms. Allocated memory is still 471.9MB. Free memory was 157.6MB in the beginning and 232.0MB in the end (delta: -74.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-11-19 08:12:29,888 INFO L158 Benchmark]: Boogie Preprocessor took 168.77ms. Allocated memory is still 471.9MB. Free memory was 232.0MB in the beginning and 219.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:12:29,888 INFO L158 Benchmark]: RCFGBuilder took 147218.61ms. Allocated memory was 471.9MB in the beginning and 788.5MB in the end (delta: 316.7MB). Free memory was 218.4MB in the beginning and 287.3MB in the end (delta: -68.9MB). Peak memory consumption was 446.7MB. Max. memory is 16.1GB. [2022-11-19 08:12:29,888 INFO L158 Benchmark]: TraceAbstraction took 11476.08ms. Allocated memory is still 788.5MB. Free memory was 286.3MB in the beginning and 406.6MB in the end (delta: -120.3MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. [2022-11-19 08:12:29,889 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 788.5MB. Free memory is still 405.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:12:29,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 19786.16ms. Allocated memory was 117.4MB in the beginning and 471.9MB in the end (delta: 354.4MB). Free memory was 47.4MB in the beginning and 157.6MB in the end (delta: -110.2MB). Peak memory consumption was 278.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 782.12ms. Allocated memory is still 471.9MB. Free memory was 157.6MB in the beginning and 232.0MB in the end (delta: -74.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 168.77ms. Allocated memory is still 471.9MB. Free memory was 232.0MB in the beginning and 219.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 147218.61ms. Allocated memory was 471.9MB in the beginning and 788.5MB in the end (delta: 316.7MB). Free memory was 218.4MB in the beginning and 287.3MB in the end (delta: -68.9MB). Peak memory consumption was 446.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11476.08ms. Allocated memory is still 788.5MB. Free memory was 286.3MB in the beginning and 406.6MB in the end (delta: -120.3MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 788.5MB. Free memory is still 405.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10085]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 30387. Possible FailurePath: [L29657] struct kmem_cache *drbd_request_cache ; [L10081] int LDV_IN_INTERRUPT ; [L11264] wait_queue_head_t drbd_pp_wait ; [L30384-L30389] struct ratelimit_state drbd_ratelimit_state = {{{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_ratelimit_state.lock", 0, 0UL}}}}, 1250, 5, 0, 0, 0UL}; [L29586] int disable_sendpage ; [L10212] int proc_details ; [L15095] mempool_t *drbd_ee_mempool ; [L30390-L30401] static struct block_device_operations const drbd_ops = {& drbd_open, & drbd_release, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , sector_t , void ** , unsigned long * ))0, (unsigned int (*)(struct gendisk * , unsigned int ))0, (int (*)(struct gendisk * ))0, (void (*)(struct gendisk * ))0, (int (*)(struct gendisk * ))0, (int (*)(struct block_device * , struct hd_geometry * ))0, (void (*)(struct block_device * , unsigned long ))0, & __this_module}; [L22328-L22383] static struct data_cmd drbd_cmd_handler[43U] = { {1, 32UL, & receive_Data}, {1, 32UL, & receive_DataReply}, {1, 32UL, & receive_RSDataReply}, {0, 16UL, & receive_Barrier}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 8UL, & receive_UnplugRemote}, {0, 32UL, & receive_DataRequest}, {0, 32UL, & receive_DataRequest}, {1, 8UL, & receive_SyncParam}, {1, 32UL, & receive_protocol}, {0, 56UL, & receive_uuids}, {0, 40UL, & receive_sizes}, {0, 12UL, & receive_state}, {0, 16UL, & receive_sync_uuid}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_req_state}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 32UL, & receive_DataRequest}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 8UL, & receive_SyncParam}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_skip}, {0, 24UL, & receive_out_of_sync}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}}; [L29587] int allow_oos ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [L30379-L30383] char usermode_helper[80U] = { (char )'/', (char )'s', (char )'b', (char )'i', (char )'n', (char )'/', (char )'d', (char )'r', (char )'b', (char )'d', (char )'a', (char )'d', (char )'m', (char )'\000'}; [L48088-L48121] static struct cn_handler_struct cnd_table[27U] = { {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_primary, 0}, {& drbd_nl_secondary, 0}, {& drbd_nl_disk_conf, 0}, {& drbd_nl_detach, 0}, {& drbd_nl_net_conf, 0}, {& drbd_nl_disconnect, 0}, {& drbd_nl_resize, 0}, {& drbd_nl_syncer_conf, 0}, {& drbd_nl_invalidate, 0}, {& drbd_nl_invalidate_peer, 0}, {& drbd_nl_pause_sync, 0}, {& drbd_nl_resume_sync, 0}, {& drbd_nl_suspend_io, 0}, {& drbd_nl_resume_io, 0}, {& drbd_nl_outdate, 0}, {& drbd_nl_get_config, 1312}, {& drbd_nl_get_state, 16}, {& drbd_nl_get_uuids, 48}, {& drbd_nl_get_timeout_flag, 8}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_start_ov, 0}, {& drbd_nl_new_c_uuid, 0}}; [L7001] int enable_faults ; [L7002] int fault_rate ; [L37480-L37485] static char const *drbd_state_sw_errors[20U] = { (char const *)0, "Multiple primaries not allowed by config", "Need access to UpToDate data", (char const *)0, "Can not resync without local disk", "Can not resync without remote disk", "Refusing to be Outdated while Connected", "Refusing to be Primary while peer is not outdated", "Can not start OV/resync since it is already active", "Can not disconnect a StandAlone device", "State change was refused by peer node", "Device is diskless, the requested operation requires a disk", "Device is held open by someone", "Have no net/connection configuration", "Need a verify algorithm to start online verify", "Need a connection to start verify or resync", "Disk state is lower than outdated", "Peer does not support protocol", "In transient state, retry after next state change", "Concurrent state changes detected and aborted"}; [L30378] unsigned int cn_idx = 8U; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [L37468-L37474] static char const *drbd_conn_s_names[24U] = { "StandAlone", "Disconnecting", "Unconnected", "Timeout", "BrokenPipe", "NetworkFailure", "ProtocolError", "TearDown", "WFConnection", "WFReportParams", "Connected", "StartingSyncS", "StartingSyncT", "WFBitMapS", "WFBitMapT", "WFSyncUUID", "SyncSource", "SyncTarget", "VerifyS", "VerifyT", "PausedSyncS", "PausedSyncT", "Ahead", "Behind"}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L24430] mempool_t *drbd_request_mempool ; [L30377] unsigned int minor_count = 32U; [L48229] static atomic_t drbd_nl_seq = {2}; [L10213] struct proc_dir_entry *drbd_proc ; [L10278-L10307] struct file_operations const drbd_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & drbd_proc_open, (int (*)(struct file * , fl_owner_t ))0, & drbd_proc_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L15096] struct page *drbd_pp_pool ; [L15098] int drbd_pp_vacant ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L29591] int fault_devs ; [L37804-L37889] static struct tag const tag_descriptions[85U] = { {(char const *)0, 0, 0}, {"primary_force", 32768, 4}, {"disk_size", 16384, 8}, {"backing_dev", 57344, 128}, {"meta_dev", 57344, 128}, {"meta_dev_idx", 8192, 4}, {"on_io_error", 0, 4}, {"fencing", 0, 4}, {"my_addr", 57344, 128}, {"peer_addr", 57344, 128}, {"shared_secret", 49152, 64}, {"cram_hmac_alg", 49152, 64}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"timeout", 0, 4}, {"wire_protocol", 8192, 4}, {"try_connect_int", 0, 4}, {"ping_int", 0, 4}, {"max_epoch_size", 0, 4}, {"max_buffers", 0, 4}, {"unplug_watermark", 0, 4}, {"sndbuf_size", 0, 4}, {"ko_count", 0, 4}, {(char const *)0, 0, 0}, {"after_sb_0p", 0, 4}, {"after_sb_1p", 0, 4}, {"after_sb_2p", 0, 4}, {"want_lose", 32768, 4}, {"two_primaries", 32768, 4}, {"resize_size", 16384, 8}, {"rate", 0, 4}, {"after", 0, 4}, {"al_extents", 0, 4}, {"state_i", 0, 4}, {"uuids", 49152, 32}, {"uuids_flags", 0, 4}, {"use_degraded", 32768, 4}, {"use_bmbv", 32768, 4}, {"helper", 49152, 32}, {"rr_conflict", 0, 4}, {"ping_timeo", 0, 4}, {"always_asbp", 32768, 4}, {(char const *)0, 0, 0}, {"sync_progress", 0, 4}, {"integrity_alg", 49152, 64}, {"dump_ee_reason", 49152, 32}, {"seen_digest", 49152, 64}, {"calc_digest", 49152, 64}, {"ee_sector", 16384, 8}, {"ee_block_id", 16384, 8}, {"ee_data", 49152, 32768}, {"cpu_mask", 49152, 32}, {"verify_alg", 49152, 64}, {"no_disk_flush", 32768, 4}, {"no_md_flush", 32768, 4}, {(char const *)0, 0, 0}, {"max_bio_bvecs", 0, 4}, {"no_disk_barrier", 32768, 4}, {"no_disk_drain", 32768, 4}, {(char const *)0, 0, 0}, {"mind_af", 40960, 4}, {"no_cork", 32768, 4}, {"auto_sndbuf_size", 40960, 4}, {"clear_bm", 40960, 4}, {"csums_alg", 49152, 64}, {"use_rle", 32768, 4}, {"start_sector", 16384, 8}, {"rcvbuf_size", 0, 4}, {"resize_force", 32768, 4}, {"no_resync", 40960, 4}, {"dry_run", 40960, 4}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"on_no_data", 0, 4}, {"c_plan_ahead", 0, 4}, {"c_delay_target", 0, 4}, {"c_fill_target", 0, 4}, {"c_max_rate", 0, 4}, {"c_min_rate", 0, 4}, {"on_congestion", 0, 4}, {"cong_fill", 0, 4}, {"cong_extents", 0, 4}, {"force", 32768, 4}}; [L29664] spinlock_t drbd_pp_lock ; [L10089] int ldv_module_refcounter = 1; [L7059] rwlock_t global_state_lock ; [L10200] struct drbd_conf **minor_table ; [L30357-L30365] static struct mutex drbd_main_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex.wait_lock", 0, 0UL}}}}, {& drbd_main_mutex.wait_list, & drbd_main_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& drbd_main_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex", 0, 0UL}}; [L30376] static int fault_count ; [L10746] struct inode *var_group1 ; [L10747] struct file *var_group2 ; [L10748] int res_drbd_proc_open_4 ; [L10749] int ldv_s_drbd_proc_fops_file_operations ; [L10750] int tmp ; [L10751] int tmp___0 ; [L10754] ldv_s_drbd_proc_fops_file_operations = 0 [L10755] LDV_IN_INTERRUPT = 1 [L10756] FCALL ldv_initialize() [L10802] tmp___0 = __VERIFIER_nondet_int() [L10804] COND TRUE tmp___0 != 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp___0=-2, usermode_helper={1497:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}] [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846992:1152921504606846977}, file={1152921504606846992:1152921504606846977}, global_state_lock={1509:0}, inode={1152921504606846986:-1355835689417651968512}, inode={1152921504606846986:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; [L10103] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L10105] CALL, EXPR ldv_undefined_int() [L49395] return __VERIFIER_nondet_int(); [L10105] RET, EXPR ldv_undefined_int() [L10105] module_get_succeeded = ldv_undefined_int() [L10107] COND TRUE module_get_succeeded == 1 [L10108] ldv_module_refcounter = ldv_module_refcounter + 1 [L10109] return (1); [L10824] RET, EXPR ldv_try_module_get(module) [L10824] tmp = ldv_try_module_get(module) [L10826] return (tmp); [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1152921504606846992:1152921504606846977}, file={1152921504606846992:1152921504606846977}, global_state_lock={1509:0}, inode={1152921504606846986:-1355835689417651968512}, inode={1152921504606846986:-1355835689417651968512}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1(& __this_module)=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10721] tmp___1 = ldv_try_module_get_1(& __this_module) [L10723] COND TRUE tmp___1 != 0 [L10725] CALL, EXPR PDE((struct inode const *)inode) [L10179] struct proc_inode *tmp ; [L10182] CALL, EXPR PROC_I(inode) [L10172] struct inode const *__mptr ; [L10174] __mptr = inode [L10175] return ((struct proc_inode *)__mptr + 0x0fffffffffffffc0UL); [L10182] RET, EXPR PROC_I(inode) [L10182] tmp = PROC_I(inode) [L10184] EXPR tmp->pde [L10184] return (tmp->pde); [L10725] RET, EXPR PDE((struct inode const *)inode) [L10725] tmp = PDE((struct inode const *)inode) [L10726] EXPR tmp->data [L10726] CALL, EXPR single_open(file, & drbd_seq_show, tmp->data) [L49504] return __VERIFIER_nondet_int(); [L10726] RET, EXPR single_open(file, & drbd_seq_show, tmp->data) [L10726] tmp___0 = single_open(file, & drbd_seq_show, tmp->data) [L10728] return (tmp___0); [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_proc_open(var_group1, var_group2)=-19, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}, var_group1={1152921504606846986:-1355835689417651968512}, var_group2={1152921504606846992:1152921504606846977}] [L10774] res_drbd_proc_open_4 = drbd_proc_open(var_group1, var_group2) [L10775] FCALL ldv_check_return_value(res_drbd_proc_open_4) [L10777] COND TRUE res_drbd_proc_open_4 != 0 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, res_drbd_proc_open_4=-19, tag_descriptions={1507:0}, tmp=0, tmp___0=-2, usermode_helper={1497:0}, var_group1={1152921504606846986:-1355835689417651968512}, var_group2={1152921504606846992:1152921504606846977}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10155] CALL ldv_blast_assert() VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10085] reach_error() VAL [__this_module={1511:-1510}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 87 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:12:29,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS --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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- 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-8393723 [2022-11-19 08:12:32,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:12:32,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:12:32,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:12:32,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:12:32,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:12:32,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:12:32,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:12:32,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:12:32,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:12:32,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:12:32,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:12:32,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:12:32,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:12:32,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:12:32,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:12:32,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:12:32,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:12:32,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:12:32,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:12:32,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:12:32,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:12:32,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:12:32,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:12:32,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:12:32,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:12:32,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:12:32,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:12:32,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:12:32,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:12:32,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:12:32,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:12:32,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:12:32,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:12:32,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:12:32,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:12:32,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:12:32,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:12:32,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:12:32,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:12:32,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:12:32,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:12:32,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:12:32,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:12:32,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:12:32,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:12:32,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:12:32,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:12:32,422 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:12:32,422 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:12:32,422 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:12:32,422 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:12:32,423 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:12:32,423 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:12:32,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:12:32,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:12:32,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:12:32,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:12:32,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:12:32,425 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:12:32,425 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:12:32,425 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:12:32,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:12:32,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:12:32,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:12:32,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:12:32,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:12:32,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:12:32,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:12:32,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:12:32,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:12:32,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:12:32,428 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:12:32,428 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:32,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:12:32,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:12:32,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:12:32,429 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-11-19 08:12:32,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:12:32,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:12:32,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:12:32,881 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:12:32,882 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:12:32,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-19 08:12:32,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/6de6abfc1/14c48d801417403a999da38ea0c98007/FLAGe23e22410 [2022-11-19 08:12:34,588 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:12:34,588 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-19 08:12:34,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/6de6abfc1/14c48d801417403a999da38ea0c98007/FLAGe23e22410 [2022-11-19 08:12:34,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/data/6de6abfc1/14c48d801417403a999da38ea0c98007 [2022-11-19 08:12:34,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:12:34,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:12:34,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:12:34,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:12:34,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:12:34,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:12:34" (1/1) ... [2022-11-19 08:12:34,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3477e460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:34, skipping insertion in model container [2022-11-19 08:12:34,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:12:34" (1/1) ... [2022-11-19 08:12:34,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:12:35,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:12:39,097 WARN L234 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_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-19 08:12:50,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:12:50,657 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 08:12:50,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:12:51,108 WARN L234 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_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-19 08:12:52,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:12:52,127 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:12:52,405 WARN L234 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_077804c8-8668-46e8-824e-b6aec870f5db/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-11-19 08:12:53,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:12:54,170 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:12:54,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54 WrapperNode [2022-11-19 08:12:54,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:12:54,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:12:54,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:12:54,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:12:54,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:54,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,002 INFO L138 Inliner]: procedures = 910, calls = 20717, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 3190 [2022-11-19 08:12:55,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:12:55,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:12:55,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:12:55,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:12:55,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,193 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:12:55,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:12:55,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:12:55,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:12:55,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (1/1) ... [2022-11-19 08:12:55,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:12:55,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:55,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:12:55,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:12:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:12:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:12:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:12:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:12:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-19 08:12:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-19 08:12:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-19 08:12:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-11-19 08:12:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-11-19 08:12:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:12:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 08:12:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 08:12:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-11-19 08:12:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-11-19 08:12:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-19 08:12:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-19 08:12:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-11-19 08:12:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-11-19 08:12:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-11-19 08:12:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-11-19 08:12:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:12:55,981 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:12:55,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:12:56,172 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 08:20:27,903 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-11-19 08:20:27,903 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-11-19 08:20:27,967 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:20:27,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:20:27,974 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:20:27,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:27 BoogieIcfgContainer [2022-11-19 08:20:27,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:20:27,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:20:27,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:20:27,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:20:27,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:12:34" (1/3) ... [2022-11-19 08:20:27,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3408938f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:27, skipping insertion in model container [2022-11-19 08:20:27,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:54" (2/3) ... [2022-11-19 08:20:27,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3408938f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:27, skipping insertion in model container [2022-11-19 08:20:27,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:27" (3/3) ... [2022-11-19 08:20:27,987 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-11-19 08:20:28,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:20:28,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:20:28,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:20:28,079 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;@397d721e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:20:28,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:20:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:20:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:20:28,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:28,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:28,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2022-11-19 08:20:28,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:20:28,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566942460] [2022-11-19 08:20:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:28,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:28,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:20:28,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:20:28,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:20:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:32,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 6125 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:20:32,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:32,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:20:32,859 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:20:32,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566942460] [2022-11-19 08:20:32,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566942460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:32,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:32,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:20:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116357426] [2022-11-19 08:20:32,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:32,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:20:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:32,897 INFO L87 Difference]: Start difference. First operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:32,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:32,974 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-11-19 08:20:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:32,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:20:32,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:32,988 INFO L225 Difference]: With dead ends: 167 [2022-11-19 08:20:32,988 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 08:20:32,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:32,994 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:32,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:20:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 08:20:33,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-11-19 08:20:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-19 08:20:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-11-19 08:20:33,043 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-11-19 08:20:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-11-19 08:20:33,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-11-19 08:20:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:20:33,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:33,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:33,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:33,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:33,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:33,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2022-11-19 08:20:33,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:20:33,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213293622] [2022-11-19 08:20:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:33,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:33,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:20:33,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:20:33,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:20:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:37,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 6150 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:20:37,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:37,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:37,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:20:37,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:20:37,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213293622] [2022-11-19 08:20:37,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213293622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:37,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:37,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:20:37,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934506258] [2022-11-19 08:20:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:37,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:20:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:20:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:20:37,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:37,594 INFO L87 Difference]: Start difference. First operand 100 states and 122 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:37,673 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-11-19 08:20:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:20:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:20:37,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:37,676 INFO L225 Difference]: With dead ends: 213 [2022-11-19 08:20:37,676 INFO L226 Difference]: Without dead ends: 115 [2022-11-19 08:20:37,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:20:37,679 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:37,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:20:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-19 08:20:37,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-19 08:20:37,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.2826086956521738) internal successors, (118), 93 states have internal predecessors, (118), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-19 08:20:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-11-19 08:20:37,697 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-11-19 08:20:37,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:37,698 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-11-19 08:20:37,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-11-19 08:20:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 08:20:37,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:37,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:37,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:37,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:37,923 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:37,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2022-11-19 08:20:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:20:37,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994745229] [2022-11-19 08:20:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:37,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:37,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:20:37,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:20:37,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:20:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:42,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 6166 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:20:42,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:42,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:20:42,404 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:20:42,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994745229] [2022-11-19 08:20:42,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994745229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:20:42,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:20:42,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:20:42,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377593868] [2022-11-19 08:20:42,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:20:42,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:20:42,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:20:42,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:20:42,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:20:42,407 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:20:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:42,597 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2022-11-19 08:20:42,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:20:42,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-11-19 08:20:42,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:42,601 INFO L225 Difference]: With dead ends: 185 [2022-11-19 08:20:42,601 INFO L226 Difference]: Without dead ends: 125 [2022-11-19 08:20:42,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:20:42,604 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 7 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:42,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 346 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:20:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-19 08:20:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-19 08:20:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 100 states have (on average 1.26) internal successors, (126), 102 states have internal predecessors, (126), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2022-11-19 08:20:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-11-19 08:20:42,623 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-11-19 08:20:42,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:42,624 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-11-19 08:20:42,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:20:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-11-19 08:20:42,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:20:42,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:42,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:20:42,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:42,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:42,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:42,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2022-11-19 08:20:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:20:42,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982423957] [2022-11-19 08:20:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:42,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:42,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:20:42,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:20:42,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:22:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:22:11,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:23:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:23:37,392 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 08:23:37,392 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:23:37,393 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:23:37,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:37,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:23:37,610 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 08:23:37,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:23:37,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:23:37 BoogieIcfgContainer [2022-11-19 08:23:37,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:23:37,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:23:37,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:23:37,814 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:23:37,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:27" (3/4) ... [2022-11-19 08:23:37,818 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:23:37,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:23:37,820 INFO L158 Benchmark]: Toolchain (without parser) took 662963.39ms. Allocated memory was 88.1MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 37.5MB in the beginning and 484.9MB in the end (delta: -447.4MB). Peak memory consumption was 819.6MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,820 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:23:37,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 19310.71ms. Allocated memory was 88.1MB in the beginning and 572.5MB in the end (delta: 484.4MB). Free memory was 37.4MB in the beginning and 182.8MB in the end (delta: -145.4MB). Peak memory consumption was 391.9MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 843.33ms. Allocated memory is still 572.5MB. Free memory was 182.8MB in the beginning and 261.4MB in the end (delta: -78.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,825 INFO L158 Benchmark]: Boogie Preprocessor took 226.00ms. Allocated memory is still 572.5MB. Free memory was 261.4MB in the beginning and 316.9MB in the end (delta: -55.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,827 INFO L158 Benchmark]: RCFGBuilder took 452734.23ms. Allocated memory was 572.5MB in the beginning and 1.4GB in the end (delta: 780.1MB). Free memory was 316.9MB in the beginning and 822.1MB in the end (delta: -505.3MB). Peak memory consumption was 781.0MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,827 INFO L158 Benchmark]: TraceAbstraction took 189833.79ms. Allocated memory is still 1.4GB. Free memory was 821.1MB in the beginning and 485.9MB in the end (delta: 335.2MB). Peak memory consumption was 335.2MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,830 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 1.4GB. Free memory was 485.9MB in the beginning and 484.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:23:37,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 19310.71ms. Allocated memory was 88.1MB in the beginning and 572.5MB in the end (delta: 484.4MB). Free memory was 37.4MB in the beginning and 182.8MB in the end (delta: -145.4MB). Peak memory consumption was 391.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 843.33ms. Allocated memory is still 572.5MB. Free memory was 182.8MB in the beginning and 261.4MB in the end (delta: -78.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 226.00ms. Allocated memory is still 572.5MB. Free memory was 261.4MB in the beginning and 316.9MB in the end (delta: -55.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * RCFGBuilder took 452734.23ms. Allocated memory was 572.5MB in the beginning and 1.4GB in the end (delta: 780.1MB). Free memory was 316.9MB in the beginning and 822.1MB in the end (delta: -505.3MB). Peak memory consumption was 781.0MB. Max. memory is 16.1GB. * TraceAbstraction took 189833.79ms. Allocated memory is still 1.4GB. Free memory was 821.1MB in the beginning and 485.9MB in the end (delta: 335.2MB). Peak memory consumption was 335.2MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 1.4GB. Free memory was 485.9MB in the beginning and 484.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10085]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 30387. Possible FailurePath: [L29657] struct kmem_cache *drbd_request_cache ; [L10081] int LDV_IN_INTERRUPT ; [L11264] wait_queue_head_t drbd_pp_wait ; [L30384-L30389] struct ratelimit_state drbd_ratelimit_state = {{{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_ratelimit_state.lock", 0, 0UL}}}}, 1250, 5, 0, 0, 0UL}; [L29586] int disable_sendpage ; [L10212] int proc_details ; [L15095] mempool_t *drbd_ee_mempool ; [L30390-L30401] static struct block_device_operations const drbd_ops = {& drbd_open, & drbd_release, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , fmode_t , unsigned int , unsigned long ))0, (int (*)(struct block_device * , sector_t , void ** , unsigned long * ))0, (unsigned int (*)(struct gendisk * , unsigned int ))0, (int (*)(struct gendisk * ))0, (void (*)(struct gendisk * ))0, (int (*)(struct gendisk * ))0, (int (*)(struct block_device * , struct hd_geometry * ))0, (void (*)(struct block_device * , unsigned long ))0, & __this_module}; [L22328-L22383] static struct data_cmd drbd_cmd_handler[43U] = { {1, 32UL, & receive_Data}, {1, 32UL, & receive_DataReply}, {1, 32UL, & receive_RSDataReply}, {0, 16UL, & receive_Barrier}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 8UL, & receive_UnplugRemote}, {0, 32UL, & receive_DataRequest}, {0, 32UL, & receive_DataRequest}, {1, 8UL, & receive_SyncParam}, {1, 32UL, & receive_protocol}, {0, 56UL, & receive_uuids}, {0, 40UL, & receive_sizes}, {0, 12UL, & receive_state}, {0, 16UL, & receive_sync_uuid}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_req_state}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 32UL, & receive_DataRequest}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 32UL, & receive_DataRequest}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {1, 8UL, & receive_SyncParam}, {1, 8UL, & receive_bitmap}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 16UL, & receive_skip}, {0, 24UL, & receive_out_of_sync}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}, {0, 0UL, (int (*)(struct drbd_conf * , enum drbd_packets , unsigned int ))0}}; [L29587] int allow_oos ; [L29659] struct kmem_cache *drbd_bm_ext_cache ; [L30379-L30383] char usermode_helper[80U] = { (char )'/', (char )'s', (char )'b', (char )'i', (char )'n', (char )'/', (char )'d', (char )'r', (char )'b', (char )'d', (char )'a', (char )'d', (char )'m', (char )'\000'}; [L48088-L48121] static struct cn_handler_struct cnd_table[27U] = { {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_primary, 0}, {& drbd_nl_secondary, 0}, {& drbd_nl_disk_conf, 0}, {& drbd_nl_detach, 0}, {& drbd_nl_net_conf, 0}, {& drbd_nl_disconnect, 0}, {& drbd_nl_resize, 0}, {& drbd_nl_syncer_conf, 0}, {& drbd_nl_invalidate, 0}, {& drbd_nl_invalidate_peer, 0}, {& drbd_nl_pause_sync, 0}, {& drbd_nl_resume_sync, 0}, {& drbd_nl_suspend_io, 0}, {& drbd_nl_resume_io, 0}, {& drbd_nl_outdate, 0}, {& drbd_nl_get_config, 1312}, {& drbd_nl_get_state, 16}, {& drbd_nl_get_uuids, 48}, {& drbd_nl_get_timeout_flag, 8}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {(int (*)(struct drbd_conf * , struct drbd_nl_cfg_req * , struct drbd_nl_cfg_reply * ))0, 0}, {& drbd_nl_start_ov, 0}, {& drbd_nl_new_c_uuid, 0}}; [L7001] int enable_faults ; [L29590] int fault_rate ; [L37480-L37485] static char const *drbd_state_sw_errors[20U] = { (char const *)0, "Multiple primaries not allowed by config", "Need access to UpToDate data", (char const *)0, "Can not resync without local disk", "Can not resync without remote disk", "Refusing to be Outdated while Connected", "Refusing to be Primary while peer is not outdated", "Can not start OV/resync since it is already active", "Can not disconnect a StandAlone device", "State change was refused by peer node", "Device is diskless, the requested operation requires a disk", "Device is held open by someone", "Have no net/connection configuration", "Need a verify algorithm to start online verify", "Need a connection to start verify or resync", "Disk state is lower than outdated", "Peer does not support protocol", "In transient state, retry after next state change", "Concurrent state changes detected and aborted"}; [L30378] unsigned int cn_idx = 8U; [L37476-L37479] static char const *drbd_disk_s_names[9U] = { "Diskless", "Attaching", "Failed", "Negotiating", "Inconsistent", "Outdated", "DUnknown", "Consistent", "UpToDate"}; [L37468-L37474] static char const *drbd_conn_s_names[24U] = { "StandAlone", "Disconnecting", "Unconnected", "Timeout", "BrokenPipe", "NetworkFailure", "ProtocolError", "TearDown", "WFConnection", "WFReportParams", "Connected", "StartingSyncS", "StartingSyncT", "WFBitMapS", "WFBitMapT", "WFSyncUUID", "SyncSource", "SyncTarget", "VerifyS", "VerifyT", "PausedSyncS", "PausedSyncT", "Ahead", "Behind"}; [L37894] static char *drbd_m_holder = (char *)"Hands off! this is DRBD\'s meta data device."; [L29661] mempool_t *drbd_request_mempool ; [L30377] unsigned int minor_count = 32U; [L48229] static atomic_t drbd_nl_seq = {2}; [L10213] struct proc_dir_entry *drbd_proc ; [L10278-L10307] struct file_operations const drbd_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & drbd_proc_open, (int (*)(struct file * , fl_owner_t ))0, & drbd_proc_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L36025] static struct notifier_block drbd_notifier = {& drbd_notify_sys, (struct notifier_block *)0, 0}; [L29663] struct page *drbd_pp_pool ; [L29665] int drbd_pp_vacant ; [L29660] struct kmem_cache *drbd_al_ext_cache ; [L29658] struct kmem_cache *drbd_ee_cache ; [L37475] static char const *drbd_role_s_names[3U] = { "Unknown", "Primary", "Secondary"}; [L29591] int fault_devs ; [L37804-L37889] static struct tag const tag_descriptions[85U] = { {(char const *)0, 0, 0}, {"primary_force", 32768, 4}, {"disk_size", 16384, 8}, {"backing_dev", 57344, 128}, {"meta_dev", 57344, 128}, {"meta_dev_idx", 8192, 4}, {"on_io_error", 0, 4}, {"fencing", 0, 4}, {"my_addr", 57344, 128}, {"peer_addr", 57344, 128}, {"shared_secret", 49152, 64}, {"cram_hmac_alg", 49152, 64}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"timeout", 0, 4}, {"wire_protocol", 8192, 4}, {"try_connect_int", 0, 4}, {"ping_int", 0, 4}, {"max_epoch_size", 0, 4}, {"max_buffers", 0, 4}, {"unplug_watermark", 0, 4}, {"sndbuf_size", 0, 4}, {"ko_count", 0, 4}, {(char const *)0, 0, 0}, {"after_sb_0p", 0, 4}, {"after_sb_1p", 0, 4}, {"after_sb_2p", 0, 4}, {"want_lose", 32768, 4}, {"two_primaries", 32768, 4}, {"resize_size", 16384, 8}, {"rate", 0, 4}, {"after", 0, 4}, {"al_extents", 0, 4}, {"state_i", 0, 4}, {"uuids", 49152, 32}, {"uuids_flags", 0, 4}, {"use_degraded", 32768, 4}, {"use_bmbv", 32768, 4}, {"helper", 49152, 32}, {"rr_conflict", 0, 4}, {"ping_timeo", 0, 4}, {"always_asbp", 32768, 4}, {(char const *)0, 0, 0}, {"sync_progress", 0, 4}, {"integrity_alg", 49152, 64}, {"dump_ee_reason", 49152, 32}, {"seen_digest", 49152, 64}, {"calc_digest", 49152, 64}, {"ee_sector", 16384, 8}, {"ee_block_id", 16384, 8}, {"ee_data", 49152, 32768}, {"cpu_mask", 49152, 32}, {"verify_alg", 49152, 64}, {"no_disk_flush", 32768, 4}, {"no_md_flush", 32768, 4}, {(char const *)0, 0, 0}, {"max_bio_bvecs", 0, 4}, {"no_disk_barrier", 32768, 4}, {"no_disk_drain", 32768, 4}, {(char const *)0, 0, 0}, {"mind_af", 40960, 4}, {"no_cork", 32768, 4}, {"auto_sndbuf_size", 40960, 4}, {"clear_bm", 40960, 4}, {"csums_alg", 49152, 64}, {"use_rle", 32768, 4}, {"start_sector", 16384, 8}, {"rcvbuf_size", 0, 4}, {"resize_force", 32768, 4}, {"no_resync", 40960, 4}, {"dry_run", 40960, 4}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {(char const *)0, 0, 0}, {"on_no_data", 0, 4}, {"c_plan_ahead", 0, 4}, {"c_delay_target", 0, 4}, {"c_fill_target", 0, 4}, {"c_max_rate", 0, 4}, {"c_min_rate", 0, 4}, {"on_congestion", 0, 4}, {"cong_fill", 0, 4}, {"cong_extents", 0, 4}, {"force", 32768, 4}}; [L15097] spinlock_t drbd_pp_lock ; [L10089] int ldv_module_refcounter = 1; [L7059] rwlock_t global_state_lock ; [L10200] struct drbd_conf **minor_table ; [L30357-L30365] static struct mutex drbd_main_mutex = {{1}, {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex.wait_lock", 0, 0UL}}}}, {& drbd_main_mutex.wait_list, & drbd_main_mutex.wait_list}, (struct task_struct *)0, (char const *)0, (void *)(& drbd_main_mutex), {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "drbd_main_mutex", 0, 0UL}}; [L30376] static int fault_count ; VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10746] struct inode *var_group1 ; [L10747] struct file *var_group2 ; [L10748] int res_drbd_proc_open_4 ; [L10749] int ldv_s_drbd_proc_fops_file_operations ; [L10750] int tmp ; [L10751] int tmp___0 ; [L10754] ldv_s_drbd_proc_fops_file_operations = 0 [L10755] LDV_IN_INTERRUPT = 1 [L10756] FCALL ldv_initialize() [L10802] tmp___0 = __VERIFIER_nondet_int() [L10804] COND TRUE tmp___0 != 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp___0=2147483648, usermode_helper={1497:0}] [L10761] tmp = __VERIFIER_nondet_int() [L10763] COND TRUE tmp == 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}] [L10772] COND TRUE ldv_s_drbd_proc_fops_file_operations == 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}] [L10774] CALL, EXPR drbd_proc_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10716] struct proc_dir_entry *tmp ; [L10717] int tmp___0 ; [L10718] int tmp___1 ; VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10721] CALL, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10821] int tmp ; [L10824] CALL, EXPR ldv_try_module_get(module) [L10101] int module_get_succeeded ; VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor_count=32, minor_table={0:0}, module={0:-9223372036854775808}, module={0:-9223372036854775808}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10103] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L10105] CALL, EXPR ldv_undefined_int() [L49395] return __VERIFIER_nondet_int(); [L10105] RET, EXPR ldv_undefined_int() [L10105] module_get_succeeded = ldv_undefined_int() [L10107] COND TRUE module_get_succeeded == 1 [L10108] ldv_module_refcounter = ldv_module_refcounter + 1 [L10109] return (1); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={0:-9223372036854775808}, module={0:-9223372036854775808}, module_get_succeeded=1, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10824] RET, EXPR ldv_try_module_get(module) [L10824] tmp = ldv_try_module_get(module) [L10826] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, module={0:-9223372036854775808}, module={0:-9223372036854775808}, proc_details=0, tag_descriptions={1507:0}, tmp=1, usermode_helper={1497:0}] [L10721] RET, EXPR ldv_try_module_get_1(& __this_module) VAL [\old(ldv_module_refcounter)=1, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1(& __this_module)=1, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10721] tmp___1 = ldv_try_module_get_1(& __this_module) [L10723] COND TRUE tmp___1 != 0 [L10725] CALL, EXPR PDE((struct inode const *)inode) [L10179] struct proc_inode *tmp ; [L10182] CALL, EXPR PROC_I(inode) [L10172] struct inode const *__mptr ; [L10174] __mptr = inode [L10175] return ((struct proc_inode *)__mptr + 0x0fffffffffffffc0UL); VAL [\old(ldv_module_refcounter)=1, \result={2251799813685248:-9205216900857013760}, __mptr={2251799813685248:18155135997837312}, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10182] RET, EXPR PROC_I(inode) [L10182] tmp = PROC_I(inode) [L10184] EXPR tmp->pde [L10184] return (tmp->pde); [L10725] RET, EXPR PDE((struct inode const *)inode) [L10725] tmp = PDE((struct inode const *)inode) [L10726] EXPR tmp->data [L10726] CALL, EXPR single_open(file, & drbd_seq_show, tmp->data) [L49504] return __VERIFIER_nondet_int(); [L10726] RET, EXPR single_open(file, & drbd_seq_show, tmp->data) [L10726] tmp___0 = single_open(file, & drbd_seq_show, tmp->data) [L10728] return (tmp___0); VAL [\old(ldv_module_refcounter)=1, \result=-2147287040, __this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, file={1511:1512}, file={1511:1512}, global_state_lock={1509:0}, inode={2251799813685248:18155135997837312}, inode={2251799813685248:18155135997837312}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp={17592186044416:1099511693312}, tmp___0=2147680256, tmp___1=1, usermode_helper={1497:0}] [L10774] RET, EXPR drbd_proc_open(var_group1, var_group2) VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_proc_open(var_group1, var_group2)=-2147287040, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}, var_group1={2251799813685248:18155135997837312}, var_group2={1511:1512}] [L10774] res_drbd_proc_open_4 = drbd_proc_open(var_group1, var_group2) [L10775] FCALL ldv_check_return_value(res_drbd_proc_open_4) [L10777] COND TRUE res_drbd_proc_open_4 != 0 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_drbd_proc_fops_file_operations=0, minor_count=32, minor_table={0:0}, proc_details=0, res_drbd_proc_open_4=2147680256, tag_descriptions={1507:0}, tmp=0, tmp___0=2147483648, usermode_helper={1497:0}, var_group1={2251799813685248:18155135997837312}, var_group2={1511:1512}] [L10815] CALL ldv_check_final_state() [L10153] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10155] CALL ldv_blast_assert() VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] [L10085] reach_error() VAL [__this_module={0:-9223372036854775808}, allow_oos=0, cn_idx=8, cnd_table={1498:0}, disable_sendpage=0, drbd_al_ext_cache={0:0}, drbd_bm_ext_cache={0:0}, drbd_cmd_handler={1496:0}, drbd_conn_s_names={1501:0}, drbd_disk_s_names={1500:0}, drbd_ee_cache={0:0}, drbd_ee_mempool={0:0}, drbd_m_holder={1364:0}, drbd_main_mutex={1510:0}, drbd_nl_seq={1502:0}, drbd_notifier={1504:0}, drbd_ops={1495:0}, drbd_pp_lock={1508:0}, drbd_pp_pool={1505:0}, drbd_pp_vacant=0, drbd_pp_wait={1493:0}, drbd_proc={0:0}, drbd_proc_fops={1503:0}, drbd_ratelimit_state={1494:0}, drbd_request_cache={0:0}, drbd_request_mempool={0:0}, drbd_role_s_names={1506:0}, drbd_state_sw_errors={1499:0}, enable_faults=0, fault_count=0, fault_devs=0, fault_rate=0, global_state_lock={1509:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, minor_count=32, minor_table={0:0}, proc_details=0, tag_descriptions={1507:0}, usermode_helper={1497:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 189.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 591 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 383 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 208 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 99.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18441 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:23:37,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077804c8-8668-46e8-824e-b6aec870f5db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample