./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/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_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:18:37,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:18:37,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:18:37,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:18:37,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:18:37,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:18:37,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:18:37,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:18:37,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:18:37,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:18:37,480 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:18:37,482 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:18:37,483 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:18:37,485 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:18:37,485 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:18:37,486 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:18:37,486 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:18:37,487 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:18:37,487 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:18:37,488 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:18:37,489 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:18:37,489 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:18:37,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:18:37,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:18:37,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:18:37,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:18:37,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:18:37,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:18:37,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:18:37,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:18:37,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:18:37,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:18:37,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:18:37,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:18:37,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:37,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:18:37,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:18:37,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:18:37,510 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:18:37,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:18:37,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:18:37,511 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:18:37,512 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:18:37,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:18:37,513 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_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae [2023-11-24 23:18:37,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:18:38,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:18:38,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:18:38,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:18:38,011 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:18:38,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-24 23:18:41,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:18:42,377 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:18:42,378 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-24 23:18:42,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/data/bed3b83b2/583746eb88d245fca90cf9fb25079f06/FLAGa1a7bd6b0 [2023-11-24 23:18:42,451 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/data/bed3b83b2/583746eb88d245fca90cf9fb25079f06 [2023-11-24 23:18:42,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:18:42,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:18:42,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:42,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:18:42,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:18:42,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:42" (1/1) ... [2023-11-24 23:18:42,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bb5c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:42, skipping insertion in model container [2023-11-24 23:18:42,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:42" (1/1) ... [2023-11-24 23:18:42,746 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:18:45,538 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_023f6450-2fe0-41a0-a254-ff149392ecfb/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-24 23:18:45,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:45,760 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:18:45,861 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] [2023-11-24 23:18:45,863 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] [2023-11-24 23:18:45,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3922] [2023-11-24 23:18:45,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2023-11-24 23:18:45,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3928] [2023-11-24 23:18:45,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3931] [2023-11-24 23:18:45,867 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] [2023-11-24 23:18:45,868 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] [2023-11-24 23:18:45,869 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] [2023-11-24 23:18:45,869 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] [2023-11-24 23:18:45,870 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] [2023-11-24 23:18:45,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [4065] [2023-11-24 23:18:45,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4068] [2023-11-24 23:18:45,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4071] [2023-11-24 23:18:45,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4074] [2023-11-24 23:18:45,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4424] [2023-11-24 23:18:45,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4427] [2023-11-24 23:18:46,382 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_023f6450-2fe0-41a0-a254-ff149392ecfb/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2023-11-24 23:18:46,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:46,528 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:46,528 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:46,528 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:46,529 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:46,537 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:18:46,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46 WrapperNode [2023-11-24 23:18:46,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:46,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:46,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:18:46,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:18:46,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:46,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,063 INFO L138 Inliner]: procedures = 282, calls = 3119, calls flagged for inlining = 131, calls inlined = 122, statements flattened = 7778 [2023-11-24 23:18:47,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:47,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:18:47,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:18:47,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:18:47,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:18:47,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:18:47,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:18:47,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:18:47,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (1/1) ... [2023-11-24 23:18:47,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:47,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:18:47,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:18:47,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023f6450-2fe0-41a0-a254-ff149392ecfb/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:18:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-24 23:18:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-11-24 23:18:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-11-24 23:18:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:18:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:18:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2023-11-24 23:18:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2023-11-24 23:18:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2023-11-24 23:18:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2023-11-24 23:18:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-24 23:18:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-24 23:18:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-24 23:18:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-24 23:18:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-24 23:18:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-24 23:18:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-24 23:18:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-24 23:18:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:18:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:18:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2023-11-24 23:18:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2023-11-24 23:18:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-24 23:18:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-24 23:18:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:18:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:18:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-24 23:18:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-24 23:18:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-24 23:18:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-24 23:18:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-24 23:18:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-24 23:18:47,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:18:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:18:47,849 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2023-11-24 23:18:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2023-11-24 23:18:47,849 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2023-11-24 23:18:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2023-11-24 23:18:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2023-11-24 23:18:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2023-11-24 23:18:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-24 23:18:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-24 23:18:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-24 23:18:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-24 23:18:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:18:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:18:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-24 23:18:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_st_ref_mutex [2023-11-24 23:18:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2023-11-24 23:18:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2023-11-24 23:18:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-24 23:18:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-24 23:18:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:18:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-11-24 23:18:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-11-24 23:18:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2023-11-24 23:18:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2023-11-24 23:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-24 23:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-24 23:18:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-24 23:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-24 23:18:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-24 23:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-24 23:18:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-24 23:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2023-11-24 23:18:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2023-11-24 23:18:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:18:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2023-11-24 23:18:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2023-11-24 23:18:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-24 23:18:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-24 23:18:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:18:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:18:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-24 23:18:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-24 23:18:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2023-11-24 23:18:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2023-11-24 23:18:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2023-11-24 23:18:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2023-11-24 23:18:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2023-11-24 23:18:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2023-11-24 23:18:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-24 23:18:47,862 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-24 23:18:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:18:47,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:18:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:18:47,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:18:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2023-11-24 23:18:47,863 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2023-11-24 23:18:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-24 23:18:47,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-24 23:18:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-24 23:18:47,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-24 23:18:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2023-11-24 23:18:47,865 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2023-11-24 23:18:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-24 23:18:47,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_scsi_tape [2023-11-24 23:18:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:18:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-24 23:18:47,866 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-24 23:18:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2023-11-24 23:18:47,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2023-11-24 23:18:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-24 23:18:47,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-24 23:18:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2023-11-24 23:18:47,867 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2023-11-24 23:18:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:18:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2023-11-24 23:18:47,868 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2023-11-24 23:18:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:18:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2023-11-24 23:18:47,869 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2023-11-24 23:18:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2023-11-24 23:18:47,869 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2023-11-24 23:18:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2023-11-24 23:18:47,870 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2023-11-24 23:18:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2023-11-24 23:18:47,870 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2023-11-24 23:18:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:18:47,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:18:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2023-11-24 23:18:47,871 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2023-11-24 23:18:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-24 23:18:47,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-24 23:18:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2023-11-24 23:18:47,873 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2023-11-24 23:18:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-11-24 23:18:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-11-24 23:18:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:18:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:18:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2023-11-24 23:18:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2023-11-24 23:18:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:18:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-24 23:18:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-24 23:18:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-24 23:18:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-24 23:18:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:18:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_st_ref_mutex [2023-11-24 23:18:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_st_ref_mutex [2023-11-24 23:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-24 23:18:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-24 23:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2023-11-24 23:18:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2023-11-24 23:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-24 23:18:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-24 23:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:18:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2023-11-24 23:18:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2023-11-24 23:18:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2023-11-24 23:18:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2023-11-24 23:18:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-24 23:18:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-24 23:18:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-24 23:18:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-24 23:18:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2023-11-24 23:18:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2023-11-24 23:18:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:18:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:18:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2023-11-24 23:18:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2023-11-24 23:18:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-24 23:18:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-24 23:18:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-24 23:18:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-24 23:18:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-24 23:18:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2023-11-24 23:18:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-24 23:18:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-24 23:18:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:18:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2023-11-24 23:18:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2023-11-24 23:18:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2023-11-24 23:18:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2023-11-24 23:18:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:18:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:18:48,965 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:18:48,972 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:00,926 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:08,540 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:08,541 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:19:08,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:08 BoogieIcfgContainer [2023-11-24 23:19:08,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:08,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:08,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:08,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:08,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:18:42" (1/3) ... [2023-11-24 23:19:08,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc7c04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:08, skipping insertion in model container [2023-11-24 23:19:08,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:46" (2/3) ... [2023-11-24 23:19:08,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc7c04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:08, skipping insertion in model container [2023-11-24 23:19:08,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:08" (3/3) ... [2023-11-24 23:19:08,559 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2023-11-24 23:19:08,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:08,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:08,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:08,714 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;@36df5bd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:08,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 1430 states, 964 states have (on average 1.4263485477178424) internal successors, (1375), 983 states have internal predecessors, (1375), 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) [2023-11-24 23:19:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:19:08,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:08,745 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:08,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:08,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash 524182727, now seen corresponding path program 1 times [2023-11-24 23:19:08,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:08,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180977957] [2023-11-24 23:19:08,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:08,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:19:09,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:09,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180977957] [2023-11-24 23:19:09,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180977957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:09,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:09,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388453577] [2023-11-24 23:19:09,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:09,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:09,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:09,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:09,563 INFO L87 Difference]: Start difference. First operand has 1430 states, 964 states have (on average 1.4263485477178424) internal successors, (1375), 983 states have internal predecessors, (1375), 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) [2023-11-24 23:19:14,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:16,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:19,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:21,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:24,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:26,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:27,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:27,448 INFO L93 Difference]: Finished difference Result 2820 states and 4240 transitions. [2023-11-24 23:19:27,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:27,451 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 [2023-11-24 23:19:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:27,484 INFO L225 Difference]: With dead ends: 2820 [2023-11-24 23:19:27,485 INFO L226 Difference]: Without dead ends: 1426 [2023-11-24 23:19:27,497 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 [2023-11-24 23:19:27,501 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 2121 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:27,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 1805 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 6 Unknown, 0 Unchecked, 17.6s Time] [2023-11-24 23:19:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2023-11-24 23:19:27,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2023-11-24 23:19:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 963 states have (on average 1.4236760124610592) internal successors, (1371), 979 states have internal predecessors, (1371), 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) [2023-11-24 23:19:27,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2130 transitions. [2023-11-24 23:19:27,673 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2130 transitions. Word has length 20 [2023-11-24 23:19:27,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:27,674 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 2130 transitions. [2023-11-24 23:19:27,675 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) [2023-11-24 23:19:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2130 transitions. [2023-11-24 23:19:27,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:19:27,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:27,678 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] [2023-11-24 23:19:27,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:19:27,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:27,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:27,679 INFO L85 PathProgramCache]: Analyzing trace with hash -930959817, now seen corresponding path program 1 times [2023-11-24 23:19:27,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:27,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684060203] [2023-11-24 23:19:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:28,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:19:28,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:28,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684060203] [2023-11-24 23:19:28,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684060203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:28,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:28,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:28,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325594611] [2023-11-24 23:19:28,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:28,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:28,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:28,155 INFO L87 Difference]: Start difference. First operand 1426 states and 2130 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)