./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/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_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:34,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:35,003 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:54:35,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:35,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:35,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:35,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:35,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:35,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:35,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:35,044 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:35,045 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:35,045 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:35,046 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:35,046 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:35,047 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:35,047 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:35,048 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:35,048 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:35,049 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:35,049 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:35,053 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:35,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:35,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:35,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:35,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:35,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:35,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:35,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:35,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:35,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:35,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:35,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:35,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:35,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:35,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:35,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:35,060 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:35,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:35,061 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:35,061 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:35,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:35,061 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_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2023-11-19 04:54:35,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:35,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:35,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:35,414 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:35,414 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:35,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/../../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 [2023-11-19 04:54:38,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:39,121 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:39,123 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/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 [2023-11-19 04:54:39,171 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/data/b4eda6f79/cf7147a6af534cdc973c0c70b7ae92ee/FLAG907def7a2 [2023-11-19 04:54:39,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/data/b4eda6f79/cf7147a6af534cdc973c0c70b7ae92ee [2023-11-19 04:54:39,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:39,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:39,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:39,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:39,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:39,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:39" (1/1) ... [2023-11-19 04:54:39,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc65f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:39, skipping insertion in model container [2023-11-19 04:54:39,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:39" (1/1) ... [2023-11-19 04:54:39,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:40,088 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2023-11-19 04:54:40,089 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] [2023-11-19 04:54:40,456 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_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/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] [2023-11-19 04:54:41,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:41,701 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:41,856 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2023-11-19 04:54:41,857 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] [2023-11-19 04:54:41,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4666] [2023-11-19 04:54:41,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4669] [2023-11-19 04:54:41,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4672] [2023-11-19 04:54:41,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4675] [2023-11-19 04:54:41,863 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] [2023-11-19 04:54:41,864 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] [2023-11-19 04:54:41,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4796] [2023-11-19 04:54:41,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4804] [2023-11-19 04:54:41,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4811] [2023-11-19 04:54:41,873 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_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/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] [2023-11-19 04:54:41,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [5798] [2023-11-19 04:54:42,127 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] [2023-11-19 04:54:42,128 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] [2023-11-19 04:54:42,128 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] [2023-11-19 04:54:42,129 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] [2023-11-19 04:54:42,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6787] [2023-11-19 04:54:42,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6806] [2023-11-19 04:54:42,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6808] [2023-11-19 04:54:42,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6868] [2023-11-19 04:54:42,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6904] [2023-11-19 04:54:42,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6906] [2023-11-19 04:54:42,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6914] [2023-11-19 04:54:42,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [6923] [2023-11-19 04:54:42,194 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] [2023-11-19 04:54:42,195 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] [2023-11-19 04:54:42,204 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] [2023-11-19 04:54:42,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7747] [2023-11-19 04:54:42,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7821] [2023-11-19 04:54:42,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7822] [2023-11-19 04:54:42,250 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] [2023-11-19 04:54:42,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8526] [2023-11-19 04:54:42,308 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8548] [2023-11-19 04:54:42,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8550] [2023-11-19 04:54:42,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8568] [2023-11-19 04:54:42,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8604] [2023-11-19 04:54:42,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8613] [2023-11-19 04:54:42,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8646] [2023-11-19 04:54:42,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8684] [2023-11-19 04:54:42,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8714] [2023-11-19 04:54:42,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8722] [2023-11-19 04:54:42,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:42,494 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:54:42,495 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:54:42,495 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:54:42,503 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:42,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42 WrapperNode [2023-11-19 04:54:42,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:42,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:42,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:42,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:42,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:42,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:42,871 INFO L138 Inliner]: procedures = 250, calls = 2527, calls flagged for inlining = 130, calls inlined = 128, statements flattened = 7021 [2023-11-19 04:54:42,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:42,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:42,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:42,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:42,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:42,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:42,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:42,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:43,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:43,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:43,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:43,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:43,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:43,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:43,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:43,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:43,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (1/1) ... [2023-11-19 04:54:43,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:43,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:43,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:43,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3e8142-d3dd-4182-96dd-fb2a4594e6b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2023-11-19 04:54:43,450 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2023-11-19 04:54:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 04:54:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:54:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:54:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:54:43,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:54:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:54:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:54:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2023-11-19 04:54:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2023-11-19 04:54:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-19 04:54:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-19 04:54:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2023-11-19 04:54:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2023-11-19 04:54:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 04:54:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 04:54:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:54:43,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:54:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:54:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:54:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2023-11-19 04:54:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2023-11-19 04:54:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2023-11-19 04:54:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2023-11-19 04:54:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2023-11-19 04:54:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2023-11-19 04:54:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2023-11-19 04:54:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2023-11-19 04:54:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2023-11-19 04:54:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2023-11-19 04:54:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2023-11-19 04:54:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2023-11-19 04:54:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-19 04:54:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-19 04:54:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:54:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:54:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:54:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:54:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2023-11-19 04:54:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2023-11-19 04:54:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-19 04:54:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-19 04:54:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:54:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:54:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2023-11-19 04:54:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2023-11-19 04:54:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2023-11-19 04:54:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2023-11-19 04:54:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:54:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:54:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:54:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:54:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2023-11-19 04:54:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2023-11-19 04:54:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:54:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:54:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:54:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:54:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:54:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-11-19 04:54:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-11-19 04:54:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:54:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:54:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:54:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:54:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:54:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:54:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 04:54:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 04:54:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:54:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:54:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2023-11-19 04:54:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2023-11-19 04:54:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:54:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:54:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:54:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:54:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 04:54:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 04:54:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2023-11-19 04:54:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2023-11-19 04:54:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:54:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:54:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2023-11-19 04:54:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2023-11-19 04:54:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:54:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:54:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:54:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 04:54:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 04:54:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2023-11-19 04:54:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2023-11-19 04:54:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:54:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:54:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:54:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:54:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2023-11-19 04:54:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2023-11-19 04:54:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:54:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2023-11-19 04:54:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2023-11-19 04:54:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 04:54:43,476 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 04:54:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:54:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2023-11-19 04:54:43,480 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2023-11-19 04:54:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2023-11-19 04:54:43,481 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2023-11-19 04:54:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:54:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:54:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2023-11-19 04:54:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2023-11-19 04:54:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:54:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:54:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-19 04:54:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-19 04:54:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:54:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:54:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:54:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 04:54:43,490 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 04:54:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2023-11-19 04:54:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2023-11-19 04:54:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 04:54:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 04:54:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:54:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:54:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:54:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2023-11-19 04:54:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2023-11-19 04:54:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2023-11-19 04:54:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2023-11-19 04:54:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 04:54:43,493 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 04:54:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:54:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2023-11-19 04:54:43,493 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2023-11-19 04:54:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:54:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:54:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 04:54:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 04:54:43,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:54:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:54:43,494 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 04:54:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 04:54:43,494 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 04:54:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 04:54:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2023-11-19 04:54:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2023-11-19 04:54:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-19 04:54:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-19 04:54:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2023-11-19 04:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2023-11-19 04:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2023-11-19 04:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2023-11-19 04:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 04:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 04:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2023-11-19 04:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2023-11-19 04:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2023-11-19 04:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2023-11-19 04:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2023-11-19 04:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2023-11-19 04:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-19 04:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-19 04:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:54:44,469 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:44,475 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:45,101 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:55:00,501 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:55:03,592 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:55:03,592 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:55:03,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:03 BoogieIcfgContainer [2023-11-19 04:55:03,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:55:03,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:55:03,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:55:03,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:55:03,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:39" (1/3) ... [2023-11-19 04:55:03,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9e828e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:03, skipping insertion in model container [2023-11-19 04:55:03,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:42" (2/3) ... [2023-11-19 04:55:03,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9e828e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:03, skipping insertion in model container [2023-11-19 04:55:03,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:03" (3/3) ... [2023-11-19 04:55:03,626 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 [2023-11-19 04:55:03,649 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:55:03,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:55:03,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:55:03,780 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;@6313bbfe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:55:03,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:55:03,793 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) [2023-11-19 04:55:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 04:55:03,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:03,818 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] [2023-11-19 04:55:03,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:03,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:03,824 INFO L85 PathProgramCache]: Analyzing trace with hash 16782040, now seen corresponding path program 1 times [2023-11-19 04:55:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:03,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035264443] [2023-11-19 04:55:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:03,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 04:55:04,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035264443] [2023-11-19 04:55:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035264443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:05,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:05,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:55:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380422220] [2023-11-19 04:55:05,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:05,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:05,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:05,060 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) [2023-11-19 04:55:07,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:10,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:12,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:17,613 INFO L93 Difference]: Finished difference Result 5199 states and 7863 transitions. [2023-11-19 04:55:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:55:17,622 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 [2023-11-19 04:55:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:17,692 INFO L225 Difference]: With dead ends: 5199 [2023-11-19 04:55:17,693 INFO L226 Difference]: Without dead ends: 3362 [2023-11-19 04:55:17,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:17,720 INFO L413 NwaCegarLoop]: 2513 mSDtfsCounter, 2350 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:17,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2350 Valid, 4962 Invalid, 494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 483 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2023-11-19 04:55:17,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2023-11-19 04:55:18,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3355. [2023-11-19 04:55:18,090 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) [2023-11-19 04:55:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5001 transitions. [2023-11-19 04:55:18,135 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5001 transitions. Word has length 57 [2023-11-19 04:55:18,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:18,136 INFO L495 AbstractCegarLoop]: Abstraction has 3355 states and 5001 transitions. [2023-11-19 04:55:18,136 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) [2023-11-19 04:55:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5001 transitions. [2023-11-19 04:55:18,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 04:55:18,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:18,145 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] [2023-11-19 04:55:18,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:55:18,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:18,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1535646816, now seen corresponding path program 1 times [2023-11-19 04:55:18,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:18,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676805802] [2023-11-19 04:55:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:18,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:55:18,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:18,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676805802] [2023-11-19 04:55:18,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676805802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:18,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:18,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:55:18,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851271234] [2023-11-19 04:55:18,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:55:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:55:18,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:55:18,987 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) [2023-11-19 04:55:21,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:23,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:26,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:28,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []