./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/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_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/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_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/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 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:48:57,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:48:57,961 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:48:57,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:48:57,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:48:58,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:48:58,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:48:58,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:48:58,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:48:58,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:48:58,006 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:48:58,007 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:48:58,007 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:48:58,008 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:48:58,009 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:48:58,010 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:48:58,011 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:48:58,011 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:48:58,012 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:48:58,013 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:48:58,014 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:48:58,015 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:48:58,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:48:58,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:48:58,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:48:58,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:48:58,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:48:58,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:48:58,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:48:58,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:48:58,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:48:58,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:48:58,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:48:58,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:48:58,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:58,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:48:58,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:48:58,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:48:58,026 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:48:58,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:48:58,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:48:58,028 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:48:58,028 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:48:58,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:48:58,029 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_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 [2023-11-24 23:48:58,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:48:58,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:48:58,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:48:58,382 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:48:58,383 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:48:58,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-24 23:49:01,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:49:02,533 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:49:02,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-24 23:49:02,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/data/2ff042f8f/4359a26be3bd495bb81d17b8645301b1/FLAGd62e75ec4 [2023-11-24 23:49:02,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/data/2ff042f8f/4359a26be3bd495bb81d17b8645301b1 [2023-11-24 23:49:02,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:49:02,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:49:02,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:02,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:49:02,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:49:02,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:02" (1/1) ... [2023-11-24 23:49:02,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306c4f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:02, skipping insertion in model container [2023-11-24 23:49:02,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:02" (1/1) ... [2023-11-24 23:49:02,797 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:05,221 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_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2023-11-24 23:49:05,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:05,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:49:05,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3885] [2023-11-24 23:49:05,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3887] [2023-11-24 23:49:05,581 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 23:49:05,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3904] [2023-11-24 23:49:05,585 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; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3912-3913] [2023-11-24 23:49:05,587 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)); [3927-3928] [2023-11-24 23:49:05,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4059] [2023-11-24 23:49:05,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4062] [2023-11-24 23:49:05,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4065] [2023-11-24 23:49:05,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4068] [2023-11-24 23:49:05,606 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; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [4107-4108] [2023-11-24 23:49:05,607 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; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [4112-4113] [2023-11-24 23:49:05,608 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; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [4117-4118] [2023-11-24 23:49:05,608 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; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [4122-4123] [2023-11-24 23:49:05,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5263] [2023-11-24 23:49:05,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [5901-5902] [2023-11-24 23:49:05,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [5906-5907] [2023-11-24 23:49:05,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [5911-5912] [2023-11-24 23:49:05,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [5916-5917] [2023-11-24 23:49:05,926 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_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2023-11-24 23:49:05,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:06,271 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:06,272 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:06,272 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:06,272 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:06,273 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:06,283 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:49:06,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06 WrapperNode [2023-11-24 23:49:06,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:06,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:06,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:49:06,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:49:06,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,792 INFO L138 Inliner]: procedures = 286, calls = 3982, calls flagged for inlining = 142, calls inlined = 121, statements flattened = 8416 [2023-11-24 23:49:06,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:06,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:49:06,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:49:06,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:49:06,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:06,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:07,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:07,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:07,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:07,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:07,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:49:07,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:49:07,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:49:07,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:49:07,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (1/1) ... [2023-11-24 23:49:07,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:07,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:07,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:49:07,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd88fef0-5e75-4b7c-9c9c-7e55091cb012/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:49:07,499 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-11-24 23:49:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-11-24 23:49:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-11-24 23:49:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-11-24 23:49:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-11-24 23:49:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-24 23:49:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-24 23:49:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-24 23:49:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:49:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:49:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:49:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:49:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:49:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:49:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-24 23:49:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-24 23:49:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-11-24 23:49:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-11-24 23:49:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-24 23:49:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-24 23:49:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-24 23:49:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-24 23:49:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-24 23:49:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-24 23:49:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:49:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:49:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-24 23:49:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-24 23:49:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-11-24 23:49:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-11-24 23:49:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-11-24 23:49:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-11-24 23:49:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:49:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:49:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-24 23:49:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-24 23:49:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-24 23:49:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-24 23:49:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-24 23:49:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-24 23:49:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-24 23:49:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-24 23:49:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:49:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:49:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:49:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:49:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:49:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:49:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-11-24 23:49:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-11-24 23:49:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-11-24 23:49:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-11-24 23:49:07,516 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-11-24 23:49:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-11-24 23:49:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:49:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:49:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-24 23:49:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-24 23:49:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:49:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-11-24 23:49:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-11-24 23:49:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-24 23:49:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-24 23:49:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:49:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-11-24 23:49:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-11-24 23:49:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-24 23:49:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-24 23:49:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-24 23:49:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-24 23:49:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:49:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:49:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-24 23:49:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-24 23:49:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2023-11-24 23:49:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2023-11-24 23:49:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:49:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:49:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-24 23:49:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-24 23:49:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-24 23:49:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-24 23:49:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-24 23:49:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-24 23:49:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:49:07,524 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:49:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-24 23:49:07,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-24 23:49:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-11-24 23:49:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-11-24 23:49:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-24 23:49:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-24 23:49:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-11-24 23:49:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-11-24 23:49:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-24 23:49:07,528 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-24 23:49:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2023-11-24 23:49:07,528 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2023-11-24 23:49:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:49:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-11-24 23:49:07,529 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-11-24 23:49:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-24 23:49:07,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-24 23:49:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:49:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-11-24 23:49:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-11-24 23:49:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:49:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-11-24 23:49:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-11-24 23:49:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-24 23:49:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-24 23:49:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:49:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:49:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-24 23:49:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-24 23:49:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-11-24 23:49:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-11-24 23:49:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-11-24 23:49:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-11-24 23:49:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:49:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:49:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-24 23:49:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-24 23:49:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-24 23:49:07,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-24 23:49:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-11-24 23:49:07,541 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-11-24 23:49:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-11-24 23:49:07,542 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-11-24 23:49:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-24 23:49:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-24 23:49:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:49:07,544 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:49:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:49:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2023-11-24 23:49:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2023-11-24 23:49:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-24 23:49:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-24 23:49:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-11-24 23:49:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-11-24 23:49:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-24 23:49:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-24 23:49:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-11-24 23:49:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-11-24 23:49:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-11-24 23:49:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-11-24 23:49:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-24 23:49:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-24 23:49:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:49:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:49:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-24 23:49:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-24 23:49:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-11-24 23:49:07,554 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-11-24 23:49:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-11-24 23:49:07,554 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-11-24 23:49:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-24 23:49:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-24 23:49:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:49:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-24 23:49:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-24 23:49:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:49:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:49:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:49:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-24 23:49:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-24 23:49:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2023-11-24 23:49:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2023-11-24 23:49:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-24 23:49:07,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-24 23:49:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-24 23:49:07,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-24 23:49:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-11-24 23:49:07,557 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-11-24 23:49:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-11-24 23:49:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-11-24 23:49:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-11-24 23:49:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-11-24 23:49:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-11-24 23:49:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-11-24 23:49:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-24 23:49:07,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-24 23:49:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:49:07,559 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:49:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-24 23:49:07,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-24 23:49:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:49:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-24 23:49:07,560 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-24 23:49:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-24 23:49:07,560 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-24 23:49:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-11-24 23:49:07,560 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-11-24 23:49:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:49:07,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:49:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-24 23:49:07,561 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-24 23:49:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:49:07,561 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:49:08,435 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:49:08,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:49:08,770 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:49:26,209 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:49:28,500 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:49:28,500 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:49:28,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:28 BoogieIcfgContainer [2023-11-24 23:49:28,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:49:28,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:49:28,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:49:28,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:49:28,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:49:02" (1/3) ... [2023-11-24 23:49:28,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13eff034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:28, skipping insertion in model container [2023-11-24 23:49:28,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:06" (2/3) ... [2023-11-24 23:49:28,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13eff034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:28, skipping insertion in model container [2023-11-24 23:49:28,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:28" (3/3) ... [2023-11-24 23:49:28,513 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-24 23:49:28,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:49:28,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:49:28,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:49:28,634 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;@7958c4de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:49:28,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:49:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 1275 states, 806 states have (on average 1.3523573200992556) internal successors, (1090), 823 states have internal predecessors, (1090), 379 states have call successors, (379), 89 states have call predecessors, (379), 88 states have return successors, (370), 370 states have call predecessors, (370), 370 states have call successors, (370) [2023-11-24 23:49:28,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-11-24 23:49:28,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:28,701 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:28,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:28,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1619044266, now seen corresponding path program 1 times [2023-11-24 23:49:28,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:28,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351295177] [2023-11-24 23:49:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms