./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:00:12,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:00:12,154 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:00:12,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:00:12,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:00:12,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:00:12,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:00:12,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:00:12,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:00:12,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:00:12,212 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:00:12,214 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:00:12,215 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:00:12,217 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:00:12,218 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:00:12,218 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:00:12,219 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:00:12,219 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:00:12,220 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:00:12,221 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:00:12,221 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:00:12,222 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:00:12,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:00:12,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:00:12,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:00:12,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:00:12,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:00:12,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:00:12,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:00:12,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:00:12,230 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:00:12,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:00:12,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:00:12,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:12,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:00:12,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:00:12,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:00:12,233 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:00:12,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:00:12,234 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:00:12,234 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:00:12,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:00:12,235 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae [2023-11-19 05:00:12,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:00:12,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:00:12,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:00:12,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:00:12,619 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:00:12,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-19 05:00:16,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:00:16,719 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:00:16,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-19 05:00:16,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/data/4d9c303b2/232c3fa1351e47569dfb54003dec36f7/FLAG0215fad1b [2023-11-19 05:00:16,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/data/4d9c303b2/232c3fa1351e47569dfb54003dec36f7 [2023-11-19 05:00:16,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:00:16,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:00:16,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:16,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:00:16,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:00:16,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:16" (1/1) ... [2023-11-19 05:00:16,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db6f0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:16, skipping insertion in model container [2023-11-19 05:00:16,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:16" (1/1) ... [2023-11-19 05:00:16,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:19,696 WARN L240 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_0a2346e7-e6df-4116-bd04-a803cecbb070/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-19 05:00:19,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:19,952 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:00:20,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3897] [2023-11-19 05:00:20,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3905-3906] [2023-11-19 05:00:20,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3922] [2023-11-19 05:00:20,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2023-11-19 05:00:20,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3928] [2023-11-19 05:00:20,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3931] [2023-11-19 05:00:20,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2,%0; sete %1": "+m" (v->counter), "=qm" (c): "ir" (i): "memory"); [3973-3974] [2023-11-19 05:00:20,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3985-3986] [2023-11-19 05:00:20,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3989-3990] [2023-11-19 05:00:20,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3993-3994] [2023-11-19 05:00:20,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3997-3998] [2023-11-19 05:00:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [4065] [2023-11-19 05:00:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4068] [2023-11-19 05:00:20,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4071] [2023-11-19 05:00:20,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4074] [2023-11-19 05:00:20,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4424] [2023-11-19 05:00:20,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4427] [2023-11-19 05:00:20,580 WARN L240 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_0a2346e7-e6df-4116-bd04-a803cecbb070/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-19 05:00:20,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:20,729 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:20,730 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:20,730 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:20,730 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:20,740 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:00:20,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20 WrapperNode [2023-11-19 05:00:20,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:20,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:20,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:00:20,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:00:20,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:20,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,259 INFO L138 Inliner]: procedures = 282, calls = 3119, calls flagged for inlining = 131, calls inlined = 122, statements flattened = 7698 [2023-11-19 05:00:21,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:21,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:00:21,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:00:21,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:00:21,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:00:21,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:00:21,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:00:21,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:00:21,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (1/1) ... [2023-11-19 05:00:21,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:21,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:21,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:00:21,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2346e7-e6df-4116-bd04-a803cecbb070/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:00:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 05:00:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-11-19 05:00:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-11-19 05:00:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:00:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:00:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2023-11-19 05:00:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2023-11-19 05:00:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2023-11-19 05:00:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2023-11-19 05:00:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-19 05:00:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-19 05:00:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-19 05:00:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-19 05:00:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-19 05:00:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-19 05:00:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:00:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:00:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:00:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:00:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2023-11-19 05:00:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2023-11-19 05:00:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-19 05:00:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-19 05:00:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:00:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:00:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:00:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:00:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-19 05:00:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-19 05:00:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 05:00:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 05:00:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:00:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:00:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2023-11-19 05:00:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2023-11-19 05:00:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2023-11-19 05:00:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2023-11-19 05:00:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2023-11-19 05:00:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2023-11-19 05:00:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 05:00:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 05:00:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-19 05:00:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-19 05:00:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:00:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:00:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-19 05:00:21,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-19 05:00:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2023-11-19 05:00:21,927 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2023-11-19 05:00:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-19 05:00:21,927 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-19 05:00:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:00:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-11-19 05:00:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-11-19 05:00:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2023-11-19 05:00:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2023-11-19 05:00:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 05:00:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 05:00:21,929 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 05:00:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-19 05:00:21,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-19 05:00:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-19 05:00:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-19 05:00:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:00:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2023-11-19 05:00:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2023-11-19 05:00:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:00:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2023-11-19 05:00:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2023-11-19 05:00:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:00:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:00:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:00:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:00:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-19 05:00:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-19 05:00:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2023-11-19 05:00:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2023-11-19 05:00:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2023-11-19 05:00:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2023-11-19 05:00:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2023-11-19 05:00:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2023-11-19 05:00:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-19 05:00:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-19 05:00:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 05:00:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 05:00:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:00:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:00:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2023-11-19 05:00:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2023-11-19 05:00:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:00:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:00:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 05:00:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 05:00:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2023-11-19 05:00:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2023-11-19 05:00:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-19 05:00:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-19 05:00:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:00:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 05:00:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 05:00:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2023-11-19 05:00:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2023-11-19 05:00:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 05:00:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 05:00:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2023-11-19 05:00:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2023-11-19 05:00:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:00:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2023-11-19 05:00:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2023-11-19 05:00:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:00:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2023-11-19 05:00:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2023-11-19 05:00:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2023-11-19 05:00:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2023-11-19 05:00:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2023-11-19 05:00:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2023-11-19 05:00:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2023-11-19 05:00:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2023-11-19 05:00:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:00:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:00:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2023-11-19 05:00:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2023-11-19 05:00:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-19 05:00:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-19 05:00:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2023-11-19 05:00:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2023-11-19 05:00:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-19 05:00:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-19 05:00:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:00:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:00:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2023-11-19 05:00:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2023-11-19 05:00:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:00:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:00:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:00:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 05:00:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 05:00:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:00:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:00:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_st_ref_mutex [2023-11-19 05:00:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_st_ref_mutex [2023-11-19 05:00:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:00:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 05:00:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 05:00:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:00:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-19 05:00:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-19 05:00:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-19 05:00:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-19 05:00:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:00:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:00:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2023-11-19 05:00:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2023-11-19 05:00:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2023-11-19 05:00:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2023-11-19 05:00:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-19 05:00:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-19 05:00:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-19 05:00:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-19 05:00:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2023-11-19 05:00:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2023-11-19 05:00:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:00:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:00:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2023-11-19 05:00:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2023-11-19 05:00:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-19 05:00:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-19 05:00:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-19 05:00:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-19 05:00:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-19 05:00:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-19 05:00:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:00:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:00:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:00:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2023-11-19 05:00:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2023-11-19 05:00:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2023-11-19 05:00:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2023-11-19 05:00:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:00:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:00:22,985 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:00:22,990 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:00:34,142 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:00:42,616 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:00:42,616 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:00:42,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:42 BoogieIcfgContainer [2023-11-19 05:00:42,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:00:42,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:00:42,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:00:42,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:00:42,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:00:16" (1/3) ... [2023-11-19 05:00:42,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629f9c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:42, skipping insertion in model container [2023-11-19 05:00:42,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:20" (2/3) ... [2023-11-19 05:00:42,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629f9c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:42, skipping insertion in model container [2023-11-19 05:00:42,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:42" (3/3) ... [2023-11-19 05:00:42,647 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-19 05:00:42,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:00:42,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:00:42,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:00:42,789 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3eda6465, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:00:42,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:00:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 1426 states, 960 states have (on average 1.428125) internal successors, (1371), 982 states have internal predecessors, (1371), 384 states have call successors, (384), 80 states have call predecessors, (384), 80 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-19 05:00:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:00:42,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:42,815 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:42,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:00:42,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash 831551608, now seen corresponding path program 1 times [2023-11-19 05:00:42,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475306666] [2023-11-19 05:00:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:00:43,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475306666] [2023-11-19 05:00:43,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475306666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:43,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:43,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:00:43,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102078633] [2023-11-19 05:00:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:43,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:00:43,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:43,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:00:43,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:00:43,679 INFO L87 Difference]: Start difference. First operand has 1426 states, 960 states have (on average 1.428125) internal successors, (1371), 982 states have internal predecessors, (1371), 384 states have call successors, (384), 80 states have call predecessors, (384), 80 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:45,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:00:48,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:00:52,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-19 05:00:55,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:00:57,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-19 05:01:00,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:01:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:00,583 INFO L93 Difference]: Finished difference Result 2812 states and 4232 transitions. [2023-11-19 05:01:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:01:00,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-19 05:01:00,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:00,659 INFO L225 Difference]: With dead ends: 2812 [2023-11-19 05:01:00,659 INFO L226 Difference]: Without dead ends: 1422 [2023-11-19 05:01:00,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:01:00,699 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 2117 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:01:00,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 1801 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 5 Unknown, 0 Unchecked, 16.6s Time] [2023-11-19 05:01:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2023-11-19 05:01:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1422. [2023-11-19 05:01:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 959 states have (on average 1.4254431699687173) internal successors, (1367), 978 states have internal predecessors, (1367), 383 states have call successors, (383), 80 states have call predecessors, (383), 79 states have return successors, (376), 376 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-19 05:01:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2126 transitions. [2023-11-19 05:01:01,012 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2126 transitions. Word has length 20 [2023-11-19 05:01:01,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:01,015 INFO L495 AbstractCegarLoop]: Abstraction has 1422 states and 2126 transitions. [2023-11-19 05:01:01,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:01:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2126 transitions. [2023-11-19 05:01:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 05:01:01,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:01,021 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:01,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:01:01,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:01,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:01,029 INFO L85 PathProgramCache]: Analyzing trace with hash 7540778, now seen corresponding path program 1 times [2023-11-19 05:01:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:01:01,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49622728] [2023-11-19 05:01:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:01,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:01:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:01:01,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:01:01,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49622728] [2023-11-19 05:01:01,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49622728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:01,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:01,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:01:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917271626] [2023-11-19 05:01:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:01,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:01:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:01:01,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:01:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:01:01,641 INFO L87 Difference]: Start difference. First operand 1422 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)