./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/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_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1 --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-d790fec [2024-12-02 13:38:40,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:38:40,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 13:38:40,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:38:40,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:38:40,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:38:40,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:38:40,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:38:40,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:38:40,661 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:38:40,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:38:40,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:38:40,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:38:40,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:38:40,662 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:38:40,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:38:40,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:38:40,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:38:40,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:38:40,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:38:40,663 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:40,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:38:40,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:40,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:38:40,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:38:40,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:38:40,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:38:40,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:38:40,665 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_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 13:38:40,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:38:40,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:38:40,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:38:40,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:38:40,906 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:38:40,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-12-02 13:38:43,582 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/data/7b307c80b/2de23156bf5e48c2be77db8b5828e41f/FLAG3822c9947 [2024-12-02 13:38:44,013 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:38:44,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-12-02 13:38:44,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/data/7b307c80b/2de23156bf5e48c2be77db8b5828e41f/FLAG3822c9947 [2024-12-02 13:38:44,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/data/7b307c80b/2de23156bf5e48c2be77db8b5828e41f [2024-12-02 13:38:44,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:38:44,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:38:44,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:38:44,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:38:44,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:38:44,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:44" (1/1) ... [2024-12-02 13:38:44,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2cafcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:44, skipping insertion in model container [2024-12-02 13:38:44,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:44" (1/1) ... [2024-12-02 13:38:44,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:38:45,202 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_8bd48e19-6dd1-4035-a79f-dcdeee457943/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-12-02 13:38:45,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:38:45,302 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:38:45,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2024-12-02 13:38:45,492 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_8bd48e19-6dd1-4035-a79f-dcdeee457943/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2024-12-02 13:38:45,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:38:45,539 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:38:45,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45 WrapperNode [2024-12-02 13:38:45,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:38:45,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:38:45,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:38:45,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:38:45,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,631 INFO L138 Inliner]: procedures = 188, calls = 659, calls flagged for inlining = 74, calls inlined = 49, statements flattened = 1340 [2024-12-02 13:38:45,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:38:45,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:38:45,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:38:45,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:38:45,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,735 INFO L175 MemorySlicer]: Split 204 memory accesses to 8 slices as follows [2, 9, 21, 12, 115, 32, 5, 8]. 56 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 9, 0, 12, 54, 4, 0, 0]. The 38 writes are split as follows [0, 0, 1, 0, 9, 28, 0, 0]. [2024-12-02 13:38:45,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,770 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:38:45,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:38:45,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:38:45,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:38:45,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (1/1) ... [2024-12-02 13:38:45,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:45,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:45,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:38:45,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:38:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-12-02 13:38:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-12-02 13:38:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2024-12-02 13:38:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2024-12-02 13:38:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2024-12-02 13:38:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2024-12-02 13:38:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 13:38:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 13:38:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 13:38:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2024-12-02 13:38:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2024-12-02 13:38:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 13:38:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-12-02 13:38:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2024-12-02 13:38:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:38:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 13:38:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 13:38:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2024-12-02 13:38:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2024-12-02 13:38:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-12-02 13:38:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2024-12-02 13:38:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-02 13:38:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2024-12-02 13:38:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 13:38:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2024-12-02 13:38:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2024-12-02 13:38:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 13:38:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 13:38:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 13:38:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-12-02 13:38:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 13:38:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2024-12-02 13:38:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2024-12-02 13:38:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2024-12-02 13:38:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-12-02 13:38:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-12-02 13:38:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:38:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:38:46,183 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:38:46,185 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:38:49,033 INFO L? ?]: Removed 641 outVars from TransFormulas that were not future-live. [2024-12-02 13:38:49,033 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:38:49,048 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:38:49,049 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:38:49,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:49 BoogieIcfgContainer [2024-12-02 13:38:49,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:38:49,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:38:49,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:38:49,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:38:49,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:44" (1/3) ... [2024-12-02 13:38:49,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adc19db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:49, skipping insertion in model container [2024-12-02 13:38:49,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45" (2/3) ... [2024-12-02 13:38:49,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adc19db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:49, skipping insertion in model container [2024-12-02 13:38:49,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:49" (3/3) ... [2024-12-02 13:38:49,057 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2024-12-02 13:38:49,068 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:38:49,070 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. [2024-12-02 13:38:49,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:38:49,130 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;@3da40b56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:38:49,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:38:49,135 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) [2024-12-02 13:38:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 13:38:49,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:49,143 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] [2024-12-02 13:38:49,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:49,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash 730551934, now seen corresponding path program 1 times [2024-12-02 13:38:49,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:49,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347117643] [2024-12-02 13:38:49,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:49,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:49,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:38:49,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:49,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347117643] [2024-12-02 13:38:49,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347117643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:49,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:49,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:49,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919519796] [2024-12-02 13:38:49,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:49,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:38:49,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:49,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:38:49,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:49,650 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) [2024-12-02 13:38:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:50,312 INFO L93 Difference]: Finished difference Result 820 states and 1105 transitions. [2024-12-02 13:38:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:38:50,314 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 [2024-12-02 13:38:50,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:50,324 INFO L225 Difference]: With dead ends: 820 [2024-12-02 13:38:50,324 INFO L226 Difference]: Without dead ends: 406 [2024-12-02 13:38:50,329 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 [2024-12-02 13:38:50,331 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 523 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:50,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 540 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:38:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-12-02 13:38:50,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2024-12-02 13:38:50,386 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) [2024-12-02 13:38:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 537 transitions. [2024-12-02 13:38:50,394 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 537 transitions. Word has length 25 [2024-12-02 13:38:50,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:50,396 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 537 transitions. [2024-12-02 13:38:50,396 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) [2024-12-02 13:38:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 537 transitions. [2024-12-02 13:38:50,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 13:38:50,398 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:50,398 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] [2024-12-02 13:38:50,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:38:50,399 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:50,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:50,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1172059518, now seen corresponding path program 1 times [2024-12-02 13:38:50,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:50,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82618076] [2024-12-02 13:38:50,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:50,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:38:50,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:50,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82618076] [2024-12-02 13:38:50,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82618076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:50,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:50,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:50,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386495965] [2024-12-02 13:38:50,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:50,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:38:50,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:50,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:38:50,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:50,642 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) [2024-12-02 13:38:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:51,173 INFO L93 Difference]: Finished difference Result 408 states and 538 transitions. [2024-12-02 13:38:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:38:51,174 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 [2024-12-02 13:38:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:51,177 INFO L225 Difference]: With dead ends: 408 [2024-12-02 13:38:51,177 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 13:38:51,178 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 [2024-12-02 13:38:51,178 INFO L435 NwaCegarLoop]: 534 mSDtfsCounter, 516 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:51,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 534 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:38:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 13:38:51,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-12-02 13:38:51,208 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) [2024-12-02 13:38:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 535 transitions. [2024-12-02 13:38:51,212 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 535 transitions. Word has length 26 [2024-12-02 13:38:51,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:51,212 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 535 transitions. [2024-12-02 13:38:51,213 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) [2024-12-02 13:38:51,213 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 535 transitions. [2024-12-02 13:38:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 13:38:51,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:51,215 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] [2024-12-02 13:38:51,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:38:51,215 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:51,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1973897601, now seen corresponding path program 1 times [2024-12-02 13:38:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384415406] [2024-12-02 13:38:51,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:38:51,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:51,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384415406] [2024-12-02 13:38:51,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384415406] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:51,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:51,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:51,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458376127] [2024-12-02 13:38:51,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:51,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:38:51,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:51,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:38:51,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:51,543 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) [2024-12-02 13:38:51,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:51,998 INFO L93 Difference]: Finished difference Result 405 states and 535 transitions. [2024-12-02 13:38:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:38:52,003 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 [2024-12-02 13:38:52,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:52,003 INFO L225 Difference]: With dead ends: 405 [2024-12-02 13:38:52,003 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:38:52,004 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 [2024-12-02 13:38:52,005 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 512 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:52,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:38:52,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:38:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:38:52,006 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) [2024-12-02 13:38:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:38:52,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-12-02 13:38:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:52,007 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:38:52,007 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) [2024-12-02 13:38:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:38:52,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:38:52,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:38:52,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:38:52,012 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 13:38:52,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:38:53,883 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:38:53,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:53 BoogieIcfgContainer [2024-12-02 13:38:53,896 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:38:53,897 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:38:53,897 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:38:53,897 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:38:53,898 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:49" (3/4) ... [2024-12-02 13:38:53,900 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2024-12-02 13:38:53,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2024-12-02 13:38:53,907 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2024-12-02 13:38:53,924 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2024-12-02 13:38:53,926 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-12-02 13:38:53,928 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-12-02 13:38:53,930 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 13:38:53,931 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 13:38:53,933 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:38:54,083 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:38:54,083 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:38:54,083 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:38:54,084 INFO L158 Benchmark]: Toolchain (without parser) took 9914.60ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 107.8MB in the beginning and 174.8MB in the end (delta: -67.0MB). Peak memory consumption was 90.5MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,084 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 83.0MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:54,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1369.90ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 62.2MB in the end (delta: 45.6MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.09ms. Allocated memory is still 142.6MB. Free memory was 62.2MB in the beginning and 53.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,085 INFO L158 Benchmark]: Boogie Preprocessor took 171.72ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 53.8MB in the beginning and 231.0MB in the end (delta: -177.2MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,085 INFO L158 Benchmark]: RCFGBuilder took 3244.77ms. Allocated memory is still 302.0MB. Free memory was 231.0MB in the beginning and 223.8MB in the end (delta: 7.3MB). Peak memory consumption was 127.5MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,086 INFO L158 Benchmark]: TraceAbstraction took 4844.94ms. Allocated memory is still 302.0MB. Free memory was 223.8MB in the beginning and 195.1MB in the end (delta: 28.7MB). Peak memory consumption was 164.6MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,086 INFO L158 Benchmark]: Witness Printer took 186.29ms. Allocated memory is still 302.0MB. Free memory was 195.1MB in the beginning and 174.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:38:54,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 83.0MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1369.90ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 62.2MB in the end (delta: 45.6MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.09ms. Allocated memory is still 142.6MB. Free memory was 62.2MB in the beginning and 53.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 171.72ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 53.8MB in the beginning and 231.0MB in the end (delta: -177.2MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3244.77ms. Allocated memory is still 302.0MB. Free memory was 231.0MB in the beginning and 223.8MB in the end (delta: 7.3MB). Peak memory consumption was 127.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4844.94ms. Allocated memory is still 302.0MB. Free memory was 223.8MB in the beginning and 195.1MB in the end (delta: 28.7MB). Peak memory consumption was 164.6MB. Max. memory is 16.1GB. * Witness Printer took 186.29ms. Allocated memory is still 302.0MB. Free memory was 195.1MB in the beginning and 174.8MB in the end (delta: 20.3MB). 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: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1551 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1551 mSDsluCounter, 1606 SdHoareTripleChecker+Invalid, 1.5s 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s 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! [2024-12-02 13:38:54,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd48e19-6dd1-4035-a79f-dcdeee457943/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE