./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--dc395x.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_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/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_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/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--dc395x.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/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_91619c10-0859-406b-962f-58a1620ed1d5/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 0011bf3948bf1d5c39bf27544f1c0eeb95eb3a8609236ba1425eb8eb6552d47c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:50,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:50,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:37:50,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:50,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:50,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:50,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:50,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:50,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:50,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:50,219 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:50,220 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:50,220 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:50,222 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:50,222 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:50,223 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:50,223 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:50,223 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:50,224 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:50,224 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:50,225 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:50,225 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:50,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:50,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:50,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:50,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:50,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:50,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:50,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:50,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:50,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:50,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:50,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:50,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:50,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:50,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:50,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:50,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:50,233 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:50,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:50,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:50,234 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:50,235 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:50,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:50,235 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0011bf3948bf1d5c39bf27544f1c0eeb95eb3a8609236ba1425eb8eb6552d47c [2023-11-23 20:37:50,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:50,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:50,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:50,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:50,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:50,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/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--dc395x.ko-entry_point.cil.out.i [2023-11-23 20:37:53,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:54,389 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:54,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dc395x.ko-entry_point.cil.out.i [2023-11-23 20:37:54,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/data/7d0e42ddf/098084faa62547349b52f59e32977fe8/FLAG400939624 [2023-11-23 20:37:54,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/data/7d0e42ddf/098084faa62547349b52f59e32977fe8 [2023-11-23 20:37:54,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:54,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:54,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:54,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:54,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:54,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:54" (1/1) ... [2023-11-23 20:37:54,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0d48ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:54, skipping insertion in model container [2023-11-23 20:37:54,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:54" (1/1) ... [2023-11-23 20:37:54,661 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:55,204 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4382] [2023-11-23 20:37:55,205 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4383-4384] [2023-11-23 20:37:55,648 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_91619c10-0859-406b-962f-58a1620ed1d5/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dc395x.ko-entry_point.cil.out.i[138207,138220] [2023-11-23 20:37:57,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:57,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:57,411 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4382] [2023-11-23 20:37:57,411 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4383-4384] [2023-11-23 20:37:57,416 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)); [4526-4527] [2023-11-23 20:37:57,418 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"); [4532-4534] [2023-11-23 20:37:57,419 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" (809), "i" (12UL)); [4556-4557] [2023-11-23 20:37:57,420 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [4562-4564] [2023-11-23 20:37:57,421 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" (814), "i" (12UL)); [4585-4586] [2023-11-23 20:37:57,421 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4591-4593] [2023-11-23 20:37:57,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4663] [2023-11-23 20:37:57,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4671] [2023-11-23 20:37:57,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4678] [2023-11-23 20:37:57,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [4686] [2023-11-23 20:37:57,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4693] [2023-11-23 20:37:57,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4701] [2023-11-23 20:37:57,429 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_91619c10-0859-406b-962f-58a1620ed1d5/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dc395x.ko-entry_point.cil.out.i[138207,138220] [2023-11-23 20:37:57,441 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [4959-4960] [2023-11-23 20:37:57,443 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [4988-4989] [2023-11-23 20:37:57,445 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5018-5019] [2023-11-23 20:37:57,447 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (155), "i" (12UL)); [5048-5049] [2023-11-23 20:37:57,476 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/5433/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/dc395x.o.c.prepared"), "i" (1080), "i" (12UL)); [5744-5745] [2023-11-23 20:37:57,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:57,916 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:57,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57 WrapperNode [2023-11-23 20:37:57,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:57,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:57,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:57,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:57,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,392 INFO L138 Inliner]: procedures = 289, calls = 2964, calls flagged for inlining = 154, calls inlined = 150, statements flattened = 8307 [2023-11-23 20:37:58,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:58,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:58,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:58,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:58,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:58,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:59,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:59,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:59,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:59,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (1/1) ... [2023-11-23 20:37:59,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:59,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:59,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91619c10-0859-406b-962f-58a1620ed1d5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure srb_waiting_append [2023-11-23 20:37:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure srb_waiting_append [2023-11-23 20:37:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure list_size [2023-11-23 20:37:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure list_size [2023-11-23 20:37:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_kunmap_atomic_sg [2023-11-23 20:37:59,223 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_kunmap_atomic_sg [2023-11-23 20:37:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:37:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:37:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:37:59,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:37:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure waiting_set_timer [2023-11-23 20:37:59,224 INFO L138 BoogieDeclarations]: Found implementation of procedure waiting_set_timer [2023-11-23 20:37:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure dcb_get_next [2023-11-23 20:37:59,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dcb_get_next [2023-11-23 20:37:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure waiting_process_next [2023-11-23 20:37:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure waiting_process_next [2023-11-23 20:37:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 20:37:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 20:37:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:37:59,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:37:59,225 INFO L130 BoogieDeclarations]: Found specification of procedure build_sdtr [2023-11-23 20:37:59,226 INFO L138 BoogieDeclarations]: Found implementation of procedure build_sdtr [2023-11-23 20:37:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd [2023-11-23 20:37:59,226 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd [2023-11-23 20:37:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2023-11-23 20:37:59,226 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2023-11-23 20:37:59,226 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:37:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:37:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_remove_and_free_device [2023-11-23 20:37:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_remove_and_free_device [2023-11-23 20:37:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_after_transfer [2023-11-23 20:37:59,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_after_transfer [2023-11-23 20:37:59,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_srb_sense [2023-11-23 20:37:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_srb_sense [2023-11-23 20:37:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-11-23 20:37:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-11-23 20:37:59,228 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-23 20:37:59,228 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-23 20:37:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-23 20:37:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-23 20:37:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_6 [2023-11-23 20:37:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_6 [2023-11-23 20:37:59,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:37:59,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:37:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure start_scsi [2023-11-23 20:37:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure start_scsi [2023-11-23 20:37:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 20:37:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 20:37:59,230 INFO L130 BoogieDeclarations]: Found specification of procedure data_io_transfer [2023-11-23 20:37:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure data_io_transfer [2023-11-23 20:37:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:37:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:37:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_uninit [2023-11-23 20:37:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_uninit [2023-11-23 20:37:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:37:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:37:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:37:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:37:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2023-11-23 20:37:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2023-11-23 20:37:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 20:37:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 20:37:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure sg_verify_length [2023-11-23 20:37:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_verify_length [2023-11-23 20:37:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure set_basic_config [2023-11-23 20:37:59,233 INFO L138 BoogieDeclarations]: Found implementation of procedure set_basic_config [2023-11-23 20:37:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:37:59,233 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 20:37:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 20:37:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-23 20:37:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-23 20:37:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure enable_msgout_abort [2023-11-23 20:37:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_msgout_abort [2023-11-23 20:37:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:37:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:37:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:37:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 20:37:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 20:37:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-23 20:37:59,235 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-23 20:37:59,235 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:37:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:37:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_regs [2023-11-23 20:37:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_regs [2023-11-23 20:37:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure adapter_sg_tables_free [2023-11-23 20:37:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure adapter_sg_tables_free [2023-11-23 20:37:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure set_safe_settings [2023-11-23 20:37:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure set_safe_settings [2023-11-23 20:37:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 20:37:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 20:37:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:37:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure trms1040_write_cmd [2023-11-23 20:37:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure trms1040_write_cmd [2023-11-23 20:37:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_override [2023-11-23 20:37:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_override [2023-11-23 20:37:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:37:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:37:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:37:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure build_wdtr [2023-11-23 20:37:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure build_wdtr [2023-11-23 20:37:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 20:37:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 20:37:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:37:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:37:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure reset_dev_param [2023-11-23 20:37:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_dev_param [2023-11-23 20:37:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 20:37:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 20:37:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure msgin_reject [2023-11-23 20:37:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure msgin_reject [2023-11-23 20:37:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 20:37:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 20:37:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 20:37:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 20:37:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:37:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure srb_going_to_waiting_move [2023-11-23 20:37:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure srb_going_to_waiting_move [2023-11-23 20:37:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:37:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:37:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure sg_update_list [2023-11-23 20:37:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_update_list [2023-11-23 20:37:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:37:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:37:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure srb_going_remove [2023-11-23 20:37:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure srb_going_remove [2023-11-23 20:37:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 20:37:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 20:37:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:37:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure free_tag [2023-11-23 20:37:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tag [2023-11-23 20:37:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure srb_waiting_remove [2023-11-23 20:37:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure srb_waiting_remove [2023-11-23 20:37:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:37:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:37:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:37:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure sg_subtract_one [2023-11-23 20:37:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_subtract_one [2023-11-23 20:37:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:37:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:37:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure clear_fifo [2023-11-23 20:37:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_fifo [2023-11-23 20:37:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 20:37:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 20:37:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:37:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:37:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 20:37:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 20:37:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:37:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure dc395x_slave_destroy [2023-11-23 20:37:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure dc395x_slave_destroy [2023-11-23 20:37:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 20:37:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 20:37:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 20:37:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 20:37:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:37:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:37:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure srb_free_insert [2023-11-23 20:37:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure srb_free_insert [2023-11-23 20:37:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2023-11-23 20:37:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2023-11-23 20:37:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:37:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-11-23 20:37:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-11-23 20:37:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2023-11-23 20:37:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2023-11-23 20:37:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-23 20:37:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-23 20:37:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2023-11-23 20:37:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2023-11-23 20:37:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:37:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:37:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:37:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 20:37:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 20:37:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:37:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:37:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2023-11-23 20:37:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2023-11-23 20:37:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-23 20:37:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-23 20:37:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure dc395x_remove_one [2023-11-23 20:37:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dc395x_remove_one [2023-11-23 20:37:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_srb [2023-11-23 20:37:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_srb [2023-11-23 20:37:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_kmap_atomic_sg [2023-11-23 20:37:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_kmap_atomic_sg [2023-11-23 20:37:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure find_dcb [2023-11-23 20:37:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dcb [2023-11-23 20:37:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-23 20:37:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-23 20:37:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2023-11-23 20:37:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2023-11-23 20:37:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure reset_scsi_bus [2023-11-23 20:37:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_scsi_bus [2023-11-23 20:37:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 20:37:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 20:37:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-23 20:37:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-23 20:37:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-23 20:37:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-23 20:37:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-23 20:37:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-23 20:37:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure trms1040_wait_30us [2023-11-23 20:37:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure trms1040_wait_30us [2023-11-23 20:37:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure doing_srb_done [2023-11-23 20:37:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure doing_srb_done [2023-11-23 20:38:00,410 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:38:00,414 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:38:00,679 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:38:10,565 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:38:16,515 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:38:16,515 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:38:16,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:16 BoogieIcfgContainer [2023-11-23 20:38:16,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:38:16,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:38:16,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:38:16,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:38:16,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:54" (1/3) ... [2023-11-23 20:38:16,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c42150e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:16, skipping insertion in model container [2023-11-23 20:38:16,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:57" (2/3) ... [2023-11-23 20:38:16,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c42150e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:16, skipping insertion in model container [2023-11-23 20:38:16,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:16" (3/3) ... [2023-11-23 20:38:16,530 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dc395x.ko-entry_point.cil.out.i [2023-11-23 20:38:16,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:38:16,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:38:16,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:38:16,683 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;@35f84c9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:38:16,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:38:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 2038 states, 1230 states have (on average 1.302439024390244) internal successors, (1602), 1291 states have internal predecessors, (1602), 710 states have call successors, (710), 97 states have call predecessors, (710), 96 states have return successors, (704), 690 states have call predecessors, (704), 704 states have call successors, (704) [2023-11-23 20:38:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 20:38:16,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:16,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 20:38:16,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:16,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash -105187053, now seen corresponding path program 1 times [2023-11-23 20:38:16,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:16,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857725639] [2023-11-23 20:38:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 20:38:17,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:17,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857725639] [2023-11-23 20:38:17,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857725639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:17,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064210299] [2023-11-23 20:38:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:17,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:17,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:17,876 INFO L87 Difference]: Start difference. First operand has 2038 states, 1230 states have (on average 1.302439024390244) internal successors, (1602), 1291 states have internal predecessors, (1602), 710 states have call successors, (710), 97 states have call predecessors, (710), 96 states have return successors, (704), 690 states have call predecessors, (704), 704 states have call successors, (704) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 20:38:22,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:25,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:29,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:31,885 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 20:38:32,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:32,594 INFO L93 Difference]: Finished difference Result 5717 states and 8486 transitions. [2023-11-23 20:38:32,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2023-11-23 20:38:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:32,659 INFO L225 Difference]: With dead ends: 5717 [2023-11-23 20:38:32,659 INFO L226 Difference]: Without dead ends: 3658 [2023-11-23 20:38:32,685 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 20:38:32,690 INFO L413 NwaCegarLoop]: 2747 mSDtfsCounter, 2491 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2491 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:32,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2491 Valid, 5336 Invalid, 701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2023-11-23 20:38:32,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2023-11-23 20:38:33,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3650. [2023-11-23 20:38:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 2204 states have (on average 1.2885662431941924) internal successors, (2840), 2304 states have internal predecessors, (2840), 1260 states have call successors, (1260), 186 states have call predecessors, (1260), 185 states have return successors, (1270), 1233 states have call predecessors, (1270), 1259 states have call successors, (1270) [2023-11-23 20:38:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5370 transitions. [2023-11-23 20:38:33,144 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5370 transitions. Word has length 43 [2023-11-23 20:38:33,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:33,146 INFO L495 AbstractCegarLoop]: Abstraction has 3650 states and 5370 transitions. [2023-11-23 20:38:33,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 20:38:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5370 transitions. [2023-11-23 20:38:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 20:38:33,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:33,173 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2023-11-23 20:38:33,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:38:33,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:33,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:33,175 INFO L85 PathProgramCache]: Analyzing trace with hash -282172618, now seen corresponding path program 1 times [2023-11-23 20:38:33,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:33,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773253762] [2023-11-23 20:38:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 20:38:33,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773253762] [2023-11-23 20:38:33,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773253762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:33,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:33,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852872609] [2023-11-23 20:38:33,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:33,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:33,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:33,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:33,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:33,638 INFO L87 Difference]: Start difference. First operand 3650 states and 5370 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 20:38:38,210 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 []