./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX --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 b5d2eeaaae10ee4c57bd86d22cba165fc727430aa2a7f660f053fb73e5712838 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:57,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:57,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:55:57,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:57,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:57,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:57,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:57,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:57,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:57,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:57,583 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:57,584 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:57,585 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:57,586 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:57,587 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:57,587 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:57,588 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:57,588 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:57,589 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:57,589 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:57,590 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:57,591 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:57,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:57,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:57,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:57,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:57,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:57,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:57,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:57,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:57,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:57,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:57,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:57,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:57,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:57,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:57,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:57,599 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:57,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:57,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:57,600 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:57,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:57,601 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d2eeaaae10ee4c57bd86d22cba165fc727430aa2a7f660f053fb73e5712838 [2023-11-12 00:55:57,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:57,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:57,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:57,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:57,919 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:57,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-12 00:56:01,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:01,862 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:01,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-12 00:56:01,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/data/3b989fb8c/94c324f848f74b6badd491a09456381d/FLAG6bfebc785 [2023-11-12 00:56:01,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/data/3b989fb8c/94c324f848f74b6badd491a09456381d [2023-11-12 00:56:01,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:02,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:02,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:02,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:02,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:02,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:01" (1/1) ... [2023-11-12 00:56:02,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720462fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:02, skipping insertion in model container [2023-11-12 00:56:02,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:01" (1/1) ... [2023-11-12 00:56:02,261 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:06,333 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454757,454770] [2023-11-12 00:56:06,338 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454904,454917] [2023-11-12 00:56:06,339 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455043,455056] [2023-11-12 00:56:06,339 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455201,455214] [2023-11-12 00:56:06,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:06,427 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:06,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5804] [2023-11-12 00:56:06,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5811] [2023-11-12 00:56:06,619 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)); [5909-5910] [2023-11-12 00:56:06,622 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)); [5943-5944] [2023-11-12 00:56:06,623 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" (103), "i" (12UL)); [5981-5982] [2023-11-12 00:56:06,624 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)); [6018-6019] [2023-11-12 00:56:06,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6276] [2023-11-12 00:56:06,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6303] [2023-11-12 00:56:06,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7234] [2023-11-12 00:56:06,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7354] [2023-11-12 00:56:06,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7475] [2023-11-12 00:56:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8459] [2023-11-12 00:56:06,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [9005] [2023-11-12 00:56:06,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [9012] [2023-11-12 00:56:06,731 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/a068ef8/linux-usb-dev/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [9066-9067] [2023-11-12 00:56:06,732 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"); [9072-9074] [2023-11-12 00:56:06,739 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [9305-9306] [2023-11-12 00:56:06,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9312] [2023-11-12 00:56:06,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9575] [2023-11-12 00:56:06,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10168] [2023-11-12 00:56:06,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [10432] [2023-11-12 00:56:06,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [14700] [2023-11-12 00:56:06,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [15321] [2023-11-12 00:56:07,044 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454757,454770] [2023-11-12 00:56:07,045 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[454904,454917] [2023-11-12 00:56:07,045 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455043,455056] [2023-11-12 00:56:07,046 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_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i[455201,455214] [2023-11-12 00:56:07,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:07,290 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:07,298 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:07,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07 WrapperNode [2023-11-12 00:56:07,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:07,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:07,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:07,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:07,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:07,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:07,952 INFO L138 Inliner]: procedures = 460, calls = 5234, calls flagged for inlining = 269, calls inlined = 252, statements flattened = 13730 [2023-11-12 00:56:07,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:07,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:07,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:07,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:07,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:07,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:08,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:08,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:08,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:08,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (1/1) ... [2023-11-12 00:56:08,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:08,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:08,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:08,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca35aa0e-9fcb-491a-98a7-13d080cc04dc/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2023-11-12 00:56:08,984 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2023-11-12 00:56:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2023-11-12 00:56:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2023-11-12 00:56:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:56:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:56:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:56:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:56:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:56:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:56:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:56:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:56:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2023-11-12 00:56:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2023-11-12 00:56:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2023-11-12 00:56:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2023-11-12 00:56:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:56:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:56:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:56:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:56:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:56:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:56:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-12 00:56:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-12 00:56:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:56:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:56:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-12 00:56:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-12 00:56:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:56:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:56:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:56:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:56:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-12 00:56:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-12 00:56:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:56:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:56:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:56:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:56:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:56:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:56:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:56:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:56:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:56:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2023-11-12 00:56:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2023-11-12 00:56:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:56:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:56:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:56:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:56:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:56:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:56:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:56:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:56:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:56:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:56:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:56:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:56:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:56:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2023-11-12 00:56:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2023-11-12 00:56:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2023-11-12 00:56:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2023-11-12 00:56:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-12 00:56:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-12 00:56:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2023-11-12 00:56:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2023-11-12 00:56:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:56:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:56:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:56:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:56:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2023-11-12 00:56:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2023-11-12 00:56:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2023-11-12 00:56:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2023-11-12 00:56:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2023-11-12 00:56:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2023-11-12 00:56:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:56:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2023-11-12 00:56:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2023-11-12 00:56:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:56:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:56:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:56:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:56:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:56:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:56:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:56:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:56:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:56:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:56:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-12 00:56:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-12 00:56:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:56:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:56:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:56:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:56:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:56:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:56:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:56:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:56:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:56:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:56:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2023-11-12 00:56:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2023-11-12 00:56:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:56:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:56:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:56:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:56:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2023-11-12 00:56:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2023-11-12 00:56:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2023-11-12 00:56:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2023-11-12 00:56:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:56:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:56:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:56:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:56:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:56:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-12 00:56:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-12 00:56:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-12 00:56:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-12 00:56:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:56:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:56:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:56:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:56:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:56:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2023-11-12 00:56:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2023-11-12 00:56:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-12 00:56:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-12 00:56:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-12 00:56:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-12 00:56:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:56:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:56:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-12 00:56:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-12 00:56:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:56:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:56:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:56:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:56:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:56:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:56:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 00:56:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 00:56:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2023-11-12 00:56:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2023-11-12 00:56:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:56:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:56:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:56:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:56:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2023-11-12 00:56:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2023-11-12 00:56:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-12 00:56:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-12 00:56:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2023-11-12 00:56:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2023-11-12 00:56:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:56:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:56:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2023-11-12 00:56:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2023-11-12 00:56:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-12 00:56:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-12 00:56:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:56:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:56:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2023-11-12 00:56:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2023-11-12 00:56:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2023-11-12 00:56:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2023-11-12 00:56:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:56:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:56:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2023-11-12 00:56:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2023-11-12 00:56:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-11-12 00:56:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-11-12 00:56:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:56:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:56:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:56:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:56:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2023-11-12 00:56:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2023-11-12 00:56:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-11-12 00:56:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-11-12 00:56:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:56:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:56:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:56:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2023-11-12 00:56:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2023-11-12 00:56:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:56:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:56:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:56:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:56:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:56:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-12 00:56:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-12 00:56:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2023-11-12 00:56:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2023-11-12 00:56:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:56:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:56:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:56:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2023-11-12 00:56:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2023-11-12 00:56:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2023-11-12 00:56:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2023-11-12 00:56:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:56:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:56:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:56:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:56:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2023-11-12 00:56:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2023-11-12 00:56:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:56:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:56:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-11-12 00:56:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-11-12 00:56:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2023-11-12 00:56:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2023-11-12 00:56:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:56:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:56:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 00:56:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 00:56:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2023-11-12 00:56:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2023-11-12 00:56:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-12 00:56:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-12 00:56:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2023-11-12 00:56:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2023-11-12 00:56:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2023-11-12 00:56:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2023-11-12 00:56:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:56:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:56:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:56:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:56:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 00:56:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 00:56:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:56:09,035 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:56:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:56:09,035 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:56:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:56:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2023-11-12 00:56:09,035 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2023-11-12 00:56:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:56:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:56:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-12 00:56:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-12 00:56:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2023-11-12 00:56:09,037 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2023-11-12 00:56:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:56:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:56:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2023-11-12 00:56:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2023-11-12 00:56:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-12 00:56:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-12 00:56:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:56:09,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:56:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-12 00:56:09,046 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-12 00:56:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-12 00:56:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-12 00:56:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:56:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:56:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2023-11-12 00:56:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2023-11-12 00:56:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-12 00:56:09,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-12 00:56:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2023-11-12 00:56:09,048 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2023-11-12 00:56:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:56:09,048 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:56:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2023-11-12 00:56:09,048 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2023-11-12 00:56:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:56:09,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:56:10,357 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:10,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:11,922 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:56:24,712 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:56:25,062 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:36,383 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:36,383 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:56:36,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:36 BoogieIcfgContainer [2023-11-12 00:56:36,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:36,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:36,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:36,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:36,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:01" (1/3) ... [2023-11-12 00:56:36,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd12810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:36, skipping insertion in model container [2023-11-12 00:56:36,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:07" (2/3) ... [2023-11-12 00:56:36,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd12810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:36, skipping insertion in model container [2023-11-12 00:56:36,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:36" (3/3) ... [2023-11-12 00:56:36,410 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-dec-tulip-tulip.cil.i [2023-11-12 00:56:36,440 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:36,440 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 00:56:36,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:36,599 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;@10788e77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:36,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 00:56:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 2889 states, 1743 states have (on average 1.344807802639128) internal successors, (2344), 1838 states have internal predecessors, (2344), 1017 states have call successors, (1017), 129 states have call predecessors, (1017), 128 states have return successors, (1010), 974 states have call predecessors, (1010), 1010 states have call successors, (1010) [2023-11-12 00:56:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 00:56:36,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:36,661 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2023-11-12 00:56:36,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:36,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1673688088, now seen corresponding path program 1 times [2023-11-12 00:56:36,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:36,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770778896] [2023-11-12 00:56:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:36,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-11-12 00:56:38,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:38,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770778896] [2023-11-12 00:56:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770778896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:56:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525334960] [2023-11-12 00:56:38,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:56:38,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:38,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:56:38,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:56:38,494 INFO L87 Difference]: Start difference. First operand has 2889 states, 1743 states have (on average 1.344807802639128) internal successors, (2344), 1838 states have internal predecessors, (2344), 1017 states have call successors, (1017), 129 states have call predecessors, (1017), 128 states have return successors, (1010), 974 states have call predecessors, (1010), 1010 states have call successors, (1010) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)