./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:54:09,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:54:09,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:54:09,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:54:09,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:54:09,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:54:09,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:54:09,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:54:09,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:54:09,893 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:54:09,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:54:09,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:54:09,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:54:09,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:54:09,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:54:09,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:54:09,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:54:09,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:54:09,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:54:09,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:54:09,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:54:09,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:54:09,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:54:09,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:54:09,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:54:09,898 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:54:09,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:54:09,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:54:09,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:54:09,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:09,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:09,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:54:09,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:54:09,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:54:09,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:54:09,900 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2024-11-23 23:54:10,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:54:10,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:54:10,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:54:10,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:54:10,233 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:54:10,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-23 23:54:13,314 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/data/d55af9793/22a7e5a0b747419e8fd9049d83a648c3/FLAG6d4d810e9 [2024-11-23 23:54:14,064 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:54:14,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-23 23:54:14,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/data/d55af9793/22a7e5a0b747419e8fd9049d83a648c3/FLAG6d4d810e9 [2024-11-23 23:54:14,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/data/d55af9793/22a7e5a0b747419e8fd9049d83a648c3 [2024-11-23 23:54:14,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:54:14,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:54:14,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:14,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:54:14,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:54:14,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:14" (1/1) ... [2024-11-23 23:54:14,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56906965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:14, skipping insertion in model container [2024-11-23 23:54:14,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:14" (1/1) ... [2024-11-23 23:54:14,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:54:15,999 WARN L250 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_136581b5-82c2-4364-8603-f525b1e4e008/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-11-23 23:54:16,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:16,134 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:54:16,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-11-23 23:54:16,463 WARN L250 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_136581b5-82c2-4364-8603-f525b1e4e008/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-11-23 23:54:16,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:16,577 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:54:16,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16 WrapperNode [2024-11-23 23:54:16,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:16,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:16,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:54:16,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:54:16,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,708 INFO L138 Inliner]: procedures = 188, calls = 659, calls flagged for inlining = 74, calls inlined = 49, statements flattened = 1340 [2024-11-23 23:54:16,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:16,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:54:16,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:54:16,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:54:16,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,918 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [2, 9, 32, 5, 115, 12, 8, 21]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 9, 4, 0, 54, 12, 0, 0]. The 38 writes are split as follows [0, 0, 28, 0, 9, 0, 0, 1]. [2024-11-23 23:54:16,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,983 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:16,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:17,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:17,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:17,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:54:17,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:54:17,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:54:17,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:54:17,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (1/1) ... [2024-11-23 23:54:17,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:17,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:17,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:54:17,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:54:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-23 23:54:17,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-23 23:54:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-11-23 23:54:17,092 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-11-23 23:54:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-11-23 23:54:17,093 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:54:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:54:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:54:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 23:54:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-11-23 23:54:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-11-23 23:54:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-11-23 23:54:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-11-23 23:54:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 23:54:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-11-23 23:54:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-11-23 23:54:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:54:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-11-23 23:54:17,098 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:54:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-11-23 23:54:17,099 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-11-23 23:54:17,099 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-23 23:54:17,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:54:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-23 23:54:17,100 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-23 23:54:17,100 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:54:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 23:54:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 23:54:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-11-23 23:54:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-11-23 23:54:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 23:54:17,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 23:54:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-11-23 23:54:17,105 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-11-23 23:54:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-11-23 23:54:17,105 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-11-23 23:54:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-23 23:54:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-23 23:54:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-11-23 23:54:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-11-23 23:54:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-11-23 23:54:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-11-23 23:54:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-23 23:54:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-23 23:54:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-11-23 23:54:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-11-23 23:54:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-11-23 23:54:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-23 23:54:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-23 23:54:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:54:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:54:17,614 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:54:17,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:54:20,437 INFO L? ?]: Removed 641 outVars from TransFormulas that were not future-live. [2024-11-23 23:54:20,437 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:54:20,454 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:54:20,455 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:54:20,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:20 BoogieIcfgContainer [2024-11-23 23:54:20,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:54:20,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:54:20,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:54:20,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:54:20,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:54:14" (1/3) ... [2024-11-23 23:54:20,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b36ed4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:54:20, skipping insertion in model container [2024-11-23 23:54:20,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:16" (2/3) ... [2024-11-23 23:54:20,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b36ed4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:54:20, skipping insertion in model container [2024-11-23 23:54:20,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:20" (3/3) ... [2024-11-23 23:54:20,469 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-11-23 23:54:20,485 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:54:20,490 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i that has 32 procedures, 413 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:54:20,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:54:20,599 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7293c0a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:54:20,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:54:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 297 states have (on average 1.292929292929293) internal successors, (384), 305 states have internal predecessors, (384), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-23 23:54:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 23:54:20,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:20,615 INFO L218 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] [2024-11-23 23:54:20,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:20,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash 730551934, now seen corresponding path program 1 times [2024-11-23 23:54:20,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:20,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914624293] [2024-11-23 23:54:20,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:20,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:21,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:21,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914624293] [2024-11-23 23:54:21,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914624293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:21,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:21,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005149793] [2024-11-23 23:54:21,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:21,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:21,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:21,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:21,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:21,746 INFO L87 Difference]: Start difference. First operand has 413 states, 297 states have (on average 1.292929292929293) internal successors, (384), 305 states have internal predecessors, (384), 83 states have call successors, (83), 31 states have call predecessors, (83), 31 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:22,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:22,566 INFO L93 Difference]: Finished difference Result 820 states and 1105 transitions. [2024-11-23 23:54:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:22,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-23 23:54:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:22,596 INFO L225 Difference]: With dead ends: 820 [2024-11-23 23:54:22,597 INFO L226 Difference]: Without dead ends: 406 [2024-11-23 23:54:22,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:22,608 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 523 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:22,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 540 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:54:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-23 23:54:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2024-11-23 23:54:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 293 states have (on average 1.2798634812286689) internal successors, (375), 298 states have internal predecessors, (375), 82 states have call successors, (82), 31 states have call predecessors, (82), 30 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:54:22,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 537 transitions. [2024-11-23 23:54:22,709 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 537 transitions. Word has length 25 [2024-11-23 23:54:22,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:22,711 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 537 transitions. [2024-11-23 23:54:22,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:22,711 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 537 transitions. [2024-11-23 23:54:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-23 23:54:22,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:22,718 INFO L218 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] [2024-11-23 23:54:22,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:54:22,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:22,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:22,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1172059518, now seen corresponding path program 1 times [2024-11-23 23:54:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:22,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405345127] [2024-11-23 23:54:22,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:22,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:23,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:23,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405345127] [2024-11-23 23:54:23,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405345127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:23,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:23,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:23,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138719143] [2024-11-23 23:54:23,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:23,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:23,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:23,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:23,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:23,280 INFO L87 Difference]: Start difference. First operand 406 states and 537 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:23,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:23,902 INFO L93 Difference]: Finished difference Result 408 states and 538 transitions. [2024-11-23 23:54:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:23,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-23 23:54:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:23,907 INFO L225 Difference]: With dead ends: 408 [2024-11-23 23:54:23,907 INFO L226 Difference]: Without dead ends: 405 [2024-11-23 23:54:23,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:23,909 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 516 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:23,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 534 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:54:23,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-23 23:54:23,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-23 23:54:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 293 states have (on average 1.2764505119453924) internal successors, (374), 297 states have internal predecessors, (374), 81 states have call successors, (81), 31 states have call predecessors, (81), 30 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:54:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 535 transitions. [2024-11-23 23:54:23,981 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 535 transitions. Word has length 26 [2024-11-23 23:54:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:23,981 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 535 transitions. [2024-11-23 23:54:23,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 535 transitions. [2024-11-23 23:54:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-23 23:54:23,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:23,984 INFO L218 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] [2024-11-23 23:54:23,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:54:23,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:23,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1973897601, now seen corresponding path program 1 times [2024-11-23 23:54:23,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:23,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120499835] [2024-11-23 23:54:23,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:23,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:24,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:24,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120499835] [2024-11-23 23:54:24,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120499835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:24,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:24,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:24,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296068047] [2024-11-23 23:54:24,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:24,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:24,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:24,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:24,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:24,327 INFO L87 Difference]: Start difference. First operand 405 states and 535 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:25,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:25,293 INFO L93 Difference]: Finished difference Result 405 states and 535 transitions. [2024-11-23 23:54:25,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-23 23:54:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:25,300 INFO L225 Difference]: With dead ends: 405 [2024-11-23 23:54:25,300 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:54:25,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:25,303 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 512 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:25,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:54:25,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:54:25,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:54:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:25,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:54:25,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-11-23 23:54:25,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:25,305 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:54:25,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:25,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:54:25,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:54:25,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:54:25,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:54:25,311 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 23:54:25,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:54:28,264 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:54:28,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:54:28 BoogieIcfgContainer [2024-11-23 23:54:28,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:54:28,282 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:54:28,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:54:28,282 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:54:28,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:20" (3/4) ... [2024-11-23 23:54:28,285 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-11-23 23:54:28,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-11-23 23:54:28,292 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-11-23 23:54:28,294 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-11-23 23:54:28,294 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-11-23 23:54:28,329 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2024-11-23 23:54:28,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-23 23:54:28,335 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-23 23:54:28,337 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 23:54:28,339 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 23:54:28,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:54:28,537 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:54:28,538 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:54:28,538 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:54:28,539 INFO L158 Benchmark]: Toolchain (without parser) took 14154.64ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 96.7MB in the beginning and 212.4MB in the end (delta: -115.7MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,539 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:54:28,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2193.88ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 96.4MB in the beginning and 352.6MB in the end (delta: -256.2MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.64ms. Allocated memory is still 427.8MB. Free memory was 352.6MB in the beginning and 343.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,540 INFO L158 Benchmark]: Boogie Preprocessor took 311.81ms. Allocated memory is still 427.8MB. Free memory was 343.5MB in the beginning and 318.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,541 INFO L158 Benchmark]: RCFGBuilder took 3433.56ms. Allocated memory is still 427.8MB. Free memory was 318.3MB in the beginning and 276.7MB in the end (delta: 41.6MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,541 INFO L158 Benchmark]: TraceAbstraction took 7824.41ms. Allocated memory is still 427.8MB. Free memory was 276.7MB in the beginning and 233.2MB in the end (delta: 43.5MB). Peak memory consumption was 168.2MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,541 INFO L158 Benchmark]: Witness Printer took 256.03ms. Allocated memory is still 427.8MB. Free memory was 233.2MB in the beginning and 212.4MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:54:28,543 INFO L338 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 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2193.88ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 96.4MB in the beginning and 352.6MB in the end (delta: -256.2MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.64ms. Allocated memory is still 427.8MB. Free memory was 352.6MB in the beginning and 343.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 311.81ms. Allocated memory is still 427.8MB. Free memory was 343.5MB in the beginning and 318.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3433.56ms. Allocated memory is still 427.8MB. Free memory was 318.3MB in the beginning and 276.7MB in the end (delta: 41.6MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7824.41ms. Allocated memory is still 427.8MB. Free memory was 276.7MB in the beginning and 233.2MB in the end (delta: 43.5MB). Peak memory consumption was 168.2MB. Max. memory is 16.1GB. * Witness Printer took 256.03ms. Allocated memory is still 427.8MB. Free memory was 233.2MB in the beginning and 212.4MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7332]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] * 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 - PositiveResult [Line: 7845]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 413 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1551 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1551 mSDsluCounter, 1606 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1606 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=413occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6932]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7666]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7065]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6818]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7649]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7075]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7019]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 6890]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 7095]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) RESULT: Ultimate proved your program to be correct! [2024-11-23 23:54:28,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136581b5-82c2-4364-8603-f525b1e4e008/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: TRUE