./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire --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 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:45,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:45,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:31:45,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:45,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:45,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:45,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:45,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:45,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:45,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:45,421 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:45,423 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:45,423 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:45,425 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:31:45,425 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:45,426 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:45,426 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:31:45,427 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:31:45,427 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:45,428 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:31:45,428 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:31:45,429 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:31:45,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:45,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:31:45,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:45,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:45,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:31:45,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:45,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:31:45,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:31:45,434 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:45,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:45,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:45,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:45,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:45,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:45,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:45,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:31:45,436 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:31:45,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:31:45,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:45,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:31:45,438 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:45,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:45,438 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_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2023-11-23 21:31:45,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:45,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:45,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:45,811 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:45,812 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:45,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2023-11-23 21:31:48,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:49,749 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:49,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2023-11-23 21:31:49,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/data/10cc8af9f/d22366f894c44c31a6646ac621689fbb/FLAGb46e9dc2b [2023-11-23 21:31:49,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/data/10cc8af9f/d22366f894c44c31a6646ac621689fbb [2023-11-23 21:31:49,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:49,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:49,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:49,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:49,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:49,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:49" (1/1) ... [2023-11-23 21:31:49,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3080992e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:49, skipping insertion in model container [2023-11-23 21:31:49,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:49" (1/1) ... [2023-11-23 21:31:49,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:50,549 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2023-11-23 21:31:50,550 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2023-11-23 21:31:50,981 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_da2044d4-104e-47db-971e-aa26247f27eb/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2023-11-23 21:31:52,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:52,329 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:31:52,441 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2023-11-23 21:31:52,444 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2023-11-23 21:31:52,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4666] [2023-11-23 21:31:52,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4669] [2023-11-23 21:31:52,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4672] [2023-11-23 21:31:52,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4675] [2023-11-23 21:31:52,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [4704-4705] [2023-11-23 21:31:52,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4710-4712] [2023-11-23 21:31:52,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4796] [2023-11-23 21:31:52,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4804] [2023-11-23 21:31:52,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4811] [2023-11-23 21:31:52,459 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_da2044d4-104e-47db-971e-aa26247f27eb/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2023-11-23 21:31:52,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [5798] [2023-11-23 21:31:52,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [6699-6700] [2023-11-23 21:31:52,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [6704-6705] [2023-11-23 21:31:52,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [6709-6710] [2023-11-23 21:31:52,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [6714-6715] [2023-11-23 21:31:52,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6787] [2023-11-23 21:31:52,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6806] [2023-11-23 21:31:52,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6808] [2023-11-23 21:31:52,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6868] [2023-11-23 21:31:52,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6904] [2023-11-23 21:31:52,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6906] [2023-11-23 21:31:52,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6914] [2023-11-23 21:31:52,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6923] [2023-11-23 21:31:52,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (user_msg), "i" (4UL)); [7318-7319] [2023-11-23 21:31:52,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (user_reply), "i" (4UL)); [7338-7339] [2023-11-23 21:31:52,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" (user_msg), "i" (4UL)); [7442-7443] [2023-11-23 21:31:52,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7747] [2023-11-23 21:31:52,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7821] [2023-11-23 21:31:52,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7822] [2023-11-23 21:31:52,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5440/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/dpt_i2o.o.c.prepared"), "i" (2350), "i" (12UL)); [7921-7922] [2023-11-23 21:31:52,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8526] [2023-11-23 21:31:52,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8548] [2023-11-23 21:31:52,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8550] [2023-11-23 21:31:52,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8568] [2023-11-23 21:31:52,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8604] [2023-11-23 21:31:52,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8613] [2023-11-23 21:31:52,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8646] [2023-11-23 21:31:52,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8684] [2023-11-23 21:31:52,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8714] [2023-11-23 21:31:52,976 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8722] [2023-11-23 21:31:53,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:53,124 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:53,124 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:53,125 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:31:53,132 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:31:53,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53 WrapperNode [2023-11-23 21:31:53,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:53,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:53,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:31:53,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:31:53,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,505 INFO L138 Inliner]: procedures = 250, calls = 2527, calls flagged for inlining = 130, calls inlined = 128, statements flattened = 7021 [2023-11-23 21:31:53,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:53,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:31:53,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:31:53,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:31:53,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:31:53,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:31:53,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:31:53,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:31:53,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (1/1) ... [2023-11-23 21:31:53,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:53,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:53,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:31:53,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da2044d4-104e-47db-971e-aa26247f27eb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:31:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2023-11-23 21:31:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2023-11-23 21:31:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 21:31:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:31:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:31:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:31:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:31:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:31:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:31:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2023-11-23 21:31:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2023-11-23 21:31:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-23 21:31:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-23 21:31:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2023-11-23 21:31:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2023-11-23 21:31:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:31:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:31:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:31:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:31:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:31:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:31:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2023-11-23 21:31:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2023-11-23 21:31:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2023-11-23 21:31:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2023-11-23 21:31:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2023-11-23 21:31:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2023-11-23 21:31:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2023-11-23 21:31:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2023-11-23 21:31:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2023-11-23 21:31:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2023-11-23 21:31:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2023-11-23 21:31:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2023-11-23 21:31:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-23 21:31:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-23 21:31:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:31:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:31:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:31:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:31:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2023-11-23 21:31:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2023-11-23 21:31:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-23 21:31:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-23 21:31:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:31:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:31:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2023-11-23 21:31:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2023-11-23 21:31:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2023-11-23 21:31:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2023-11-23 21:31:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:31:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:31:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:31:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:31:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2023-11-23 21:31:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2023-11-23 21:31:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:31:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:31:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:31:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:31:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:31:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-11-23 21:31:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-11-23 21:31:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:31:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:31:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:31:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:31:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:31:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:31:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:31:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:31:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:31:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:31:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2023-11-23 21:31:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2023-11-23 21:31:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:31:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:31:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:31:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:31:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:31:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:31:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2023-11-23 21:31:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2023-11-23 21:31:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:31:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:31:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2023-11-23 21:31:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2023-11-23 21:31:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:31:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:31:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:31:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 21:31:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 21:31:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2023-11-23 21:31:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2023-11-23 21:31:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:31:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:31:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:31:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:31:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2023-11-23 21:31:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2023-11-23 21:31:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:31:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2023-11-23 21:31:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2023-11-23 21:31:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:31:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:31:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:31:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2023-11-23 21:31:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2023-11-23 21:31:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2023-11-23 21:31:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2023-11-23 21:31:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:31:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:31:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2023-11-23 21:31:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2023-11-23 21:31:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:31:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:31:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-23 21:31:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-23 21:31:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:31:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:31:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:31:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:31:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:31:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2023-11-23 21:31:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2023-11-23 21:31:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:31:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:31:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:31:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:31:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:31:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2023-11-23 21:31:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2023-11-23 21:31:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2023-11-23 21:31:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2023-11-23 21:31:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:31:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:31:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:31:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2023-11-23 21:31:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2023-11-23 21:31:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:31:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:31:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:31:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:31:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:31:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:31:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-23 21:31:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-23 21:31:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:31:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:31:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2023-11-23 21:31:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2023-11-23 21:31:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-23 21:31:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-23 21:31:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2023-11-23 21:31:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2023-11-23 21:31:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2023-11-23 21:31:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2023-11-23 21:31:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:31:54,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:31:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 21:31:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 21:31:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2023-11-23 21:31:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2023-11-23 21:31:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:31:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:31:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:31:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:31:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:31:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2023-11-23 21:31:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2023-11-23 21:31:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2023-11-23 21:31:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2023-11-23 21:31:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-23 21:31:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-23 21:31:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:31:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:31:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:31:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:31:54,862 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:31:54,866 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:31:55,492 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:32:08,089 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:10,856 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:10,856 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:32:10,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:10 BoogieIcfgContainer [2023-11-23 21:32:10,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:10,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:10,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:10,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:10,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:49" (1/3) ... [2023-11-23 21:32:10,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a43d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:10, skipping insertion in model container [2023-11-23 21:32:10,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:53" (2/3) ... [2023-11-23 21:32:10,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a43d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:10, skipping insertion in model container [2023-11-23 21:32:10,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:10" (3/3) ... [2023-11-23 21:32:10,870 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2023-11-23 21:32:10,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:10,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:11,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:11,016 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;@408e8834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:11,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 1814 states, 1167 states have (on average 1.3607540702656384) internal successors, (1588), 1191 states have internal predecessors, (1588), 567 states have call successors, (567), 79 states have call predecessors, (567), 78 states have return successors, (561), 560 states have call predecessors, (561), 561 states have call successors, (561) [2023-11-23 21:32:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 21:32:11,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:11,069 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-23 21:32:11,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:11,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1913161972, now seen corresponding path program 1 times [2023-11-23 21:32:11,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:11,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606060937] [2023-11-23 21:32:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:11,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 21:32:12,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:12,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606060937] [2023-11-23 21:32:12,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606060937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:12,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:12,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:12,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801106077] [2023-11-23 21:32:12,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:12,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:12,468 INFO L87 Difference]: Start difference. First operand has 1814 states, 1167 states have (on average 1.3607540702656384) internal successors, (1588), 1191 states have internal predecessors, (1588), 567 states have call successors, (567), 79 states have call predecessors, (567), 78 states have return successors, (561), 560 states have call predecessors, (561), 561 states have call successors, (561) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:32:15,042 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 [] [2023-11-23 21:32:18,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:20,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:23,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:27,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:27,522 INFO L93 Difference]: Finished difference Result 5199 states and 7863 transitions. [2023-11-23 21:32:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:27,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 57 [2023-11-23 21:32:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:27,589 INFO L225 Difference]: With dead ends: 5199 [2023-11-23 21:32:27,590 INFO L226 Difference]: Without dead ends: 3362 [2023-11-23 21:32:27,619 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 [2023-11-23 21:32:27,624 INFO L413 NwaCegarLoop]: 2513 mSDtfsCounter, 2350 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:27,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2350 Valid, 4962 Invalid, 494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 482 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2023-11-23 21:32:27,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2023-11-23 21:32:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3355. [2023-11-23 21:32:27,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 2163 states have (on average 1.3490522422561257) internal successors, (2918), 2192 states have internal predecessors, (2918), 1042 states have call successors, (1042), 150 states have call predecessors, (1042), 149 states have return successors, (1041), 1039 states have call predecessors, (1041), 1041 states have call successors, (1041) [2023-11-23 21:32:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5001 transitions. [2023-11-23 21:32:28,042 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5001 transitions. Word has length 57 [2023-11-23 21:32:28,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:28,043 INFO L495 AbstractCegarLoop]: Abstraction has 3355 states and 5001 transitions. [2023-11-23 21:32:28,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:32:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5001 transitions. [2023-11-23 21:32:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 21:32:28,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:28,058 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 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] [2023-11-23 21:32:28,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:32:28,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:28,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash -857514202, now seen corresponding path program 1 times [2023-11-23 21:32:28,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:28,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950787692] [2023-11-23 21:32:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:28,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:32:28,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:28,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950787692] [2023-11-23 21:32:28,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950787692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:28,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:28,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:32:28,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721568545] [2023-11-23 21:32:28,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:28,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:32:28,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:28,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:32:28,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:32:28,823 INFO L87 Difference]: Start difference. First operand 3355 states and 5001 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 21:32:31,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:33,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:36,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:38,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []