./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/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_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/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_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/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 f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:38,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:38,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:52:38,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:38,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:38,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:38,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:38,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:38,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:38,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:38,718 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:38,720 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:38,720 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:38,723 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:52:38,723 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:38,724 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:38,724 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:52:38,725 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:52:38,726 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:38,726 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:52:38,727 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:52:38,727 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:52:38,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:38,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:38,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:52:38,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:38,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:38,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:38,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:38,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:38,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:38,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:38,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:38,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:38,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:38,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:38,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:38,738 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:52:38,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:52:38,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:38,739 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:38,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:38,739 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_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 [2023-11-19 04:52:39,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:39,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:39,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:39,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:39,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:39,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2023-11-19 04:52:42,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:43,575 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:43,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2023-11-19 04:52:43,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/data/dddc8ffeb/e03ebad43d31484391255d34d390e677/FLAGbb09aac93 [2023-11-19 04:52:43,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/data/dddc8ffeb/e03ebad43d31484391255d34d390e677 [2023-11-19 04:52:43,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:43,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:43,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:43,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:43,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:43,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:43" (1/1) ... [2023-11-19 04:52:43,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d55602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:43, skipping insertion in model container [2023-11-19 04:52:43,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:43" (1/1) ... [2023-11-19 04:52:43,992 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:48,399 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_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2023-11-19 04:52:48,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:48,580 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:48,737 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"); [6485] [2023-11-19 04:52:48,740 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6493-6494] [2023-11-19 04:52:48,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6528] [2023-11-19 04:52:48,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6531] [2023-11-19 04:52:48,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6534] [2023-11-19 04:52:48,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6537] [2023-11-19 04:52:48,745 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; incl %0": "+m" (v->counter)); [6580] [2023-11-19 04:52:48,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6833] [2023-11-19 04:52:48,765 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/mm.h"), "i" (543), "i" (12UL)); [6884-6885] [2023-11-19 04:52:48,794 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/skbuff.h"), "i" (1696), "i" (12UL)); [7111-7112] [2023-11-19 04:52:48,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7569] [2023-11-19 04:52:48,885 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (281), "i" (12UL)); [7710-7711] [2023-11-19 04:52:48,888 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (292), "i" (12UL)); [7723-7724] [2023-11-19 04:52:48,889 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (293), "i" (12UL)); [7731-7732] [2023-11-19 04:52:48,892 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (333), "i" (12UL)); [7778-7779] [2023-11-19 04:52:48,934 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (525), "i" (12UL)); [8078-8079] [2023-11-19 04:52:48,935 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (530), "i" (12UL)); [8090-8091] [2023-11-19 04:52:48,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8149] [2023-11-19 04:52:48,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8151] [2023-11-19 04:52:48,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8186] [2023-11-19 04:52:49,143 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (827), "i" (12UL)); [8472-8473] [2023-11-19 04:52:49,168 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (879), "i" (12UL)); [8552-8553] [2023-11-19 04:52:49,179 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (892), "i" (12UL)); [8571-8572] [2023-11-19 04:52:49,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8992] [2023-11-19 04:52:49,351 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1359), "i" (12UL)); [9180-9181] [2023-11-19 04:52:49,353 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1374), "i" (12UL)); [9210-9211] [2023-11-19 04:52:49,385 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1530), "i" (12UL)); [9424-9425] [2023-11-19 04:52:49,385 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9432] [2023-11-19 04:52:49,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9469] [2023-11-19 04:52:49,388 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1569), "i" (12UL)); [9475-9476] [2023-11-19 04:52:49,409 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1606), "i" (12UL)); [9523-9524] [2023-11-19 04:52:49,412 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1636), "i" (12UL)); [9572-9573] [2023-11-19 04:52:49,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9633] [2023-11-19 04:52:49,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [9635] [2023-11-19 04:52:49,427 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/netback.c"), "i" (1740), "i" (12UL)); [9681-9682] [2023-11-19 04:52:49,528 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/xenbus.c"), "i" (506), "i" (12UL)); [10924-10925] [2023-11-19 04:52:49,529 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/xenbus.c"), "i" (520), "i" (12UL)); [10942-10943] [2023-11-19 04:52:49,529 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/xenbus.c"), "i" (532), "i" (12UL)); [10958-10959] [2023-11-19 04:52:49,530 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/xenbus.c"), "i" (543), "i" (12UL)); [10973-10974] [2023-11-19 04:52:49,530 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/xenbus.c"), "i" (547), "i" (12UL)); [10981-10982] [2023-11-19 04:52:49,609 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)); [11798] [2023-11-19 04:52:49,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [11806-11807] [2023-11-19 04:52:49,611 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; decl %0": "+m" (v->counter)); [11825] [2023-11-19 04:52:49,614 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [11833-11834] [2023-11-19 04:52:49,616 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" (507), "i" (12UL)); [11889-11890] [2023-11-19 04:52:49,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [11895] [2023-11-19 04:52:49,634 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/interface.c"), "i" (147), "i" (12UL)); [12122-12123] [2023-11-19 04:52:49,671 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/interface.c"), "i" (523), "i" (12UL)); [12641-12642] [2023-11-19 04:52:49,672 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/interface.c"), "i" (524), "i" (12UL)); [12650-12651] [2023-11-19 04:52:49,672 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-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10967/dscv_tempdir/dscv/ri/08_1a/drivers/net/xen-netback/interface.c"), "i" (525), "i" (12UL)); [12659-12660] [2023-11-19 04:52:49,693 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_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2023-11-19 04:52:49,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:49,952 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:49,953 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:49,953 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:49,963 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:49,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49 WrapperNode [2023-11-19 04:52:49,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:49,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:49,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:49,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:49,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,378 INFO L138 Inliner]: procedures = 426, calls = 3561, calls flagged for inlining = 208, calls inlined = 117, statements flattened = 4726 [2023-11-19 04:52:50,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:50,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:50,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:50,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:50,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:50,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:50,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:50,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:50,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (1/1) ... [2023-11-19 04:52:50,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:50,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:50,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:50,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942a9f4e-dcec-4acb-b5b5-21cb6efd3f76/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 04:52:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2023-11-19 04:52:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2023-11-19 04:52:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure backend_switch_state [2023-11-19 04:52:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure backend_switch_state [2023-11-19 04:52:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2023-11-19 04:52:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2023-11-19 04:52:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:52:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:52:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hotplug_status_watch [2023-11-19 04:52:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hotplug_status_watch [2023-11-19 04:52:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-19 04:52:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-19 04:52:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_unmap_frontend_rings [2023-11-19 04:52:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_unmap_frontend_rings [2023-11-19 04:52:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:52:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:52:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_xenbus_watch [2023-11-19 04:52:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_xenbus_watch [2023-11-19 04:52:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_scanf [2023-11-19 04:52:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_scanf [2023-11-19 04:52:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_kick_thread [2023-11-19 04:52:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_kick_thread [2023-11-19 04:52:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:52:50,884 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:52:50,884 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_map_ring_valloc [2023-11-19 04:52:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_map_ring_valloc [2023-11-19 04:52:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 04:52:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 04:52:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure add_uevent_var [2023-11-19 04:52:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure add_uevent_var [2023-11-19 04:52:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:52:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:52:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_rate [2023-11-19 04:52:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_rate [2023-11-19 04:52:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 04:52:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 04:52:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-19 04:52:50,888 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-19 04:52:50,888 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:52:50,889 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:52:50,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:52:50,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:52:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure netback_uevent [2023-11-19 04:52:50,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_uevent [2023-11-19 04:52:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:52:50,890 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:52:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_carrier_off [2023-11-19 04:52:50,891 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_carrier_off [2023-11-19 04:52:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:52:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2023-11-19 04:52:50,892 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2023-11-19 04:52:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:52:50,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:52:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:52:50,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:52:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:52:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-11-19 04:52:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-11-19 04:52:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 04:52:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 04:52:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:52:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:52:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:52:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2023-11-19 04:52:50,897 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2023-11-19 04:52:50,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:52:50,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:52:50,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:52:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_deinit_queue [2023-11-19 04:52:50,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_deinit_queue [2023-11-19 04:52:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2023-11-19 04:52:50,898 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2023-11-19 04:52:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_to_xenbus_device [2023-11-19 04:52:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_to_xenbus_device [2023-11-19 04:52:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_watchers [2023-11-19 04:52:50,901 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_watchers [2023-11-19 04:52:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-19 04:52:50,901 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-19 04:52:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:52:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:52:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure frontend_changed [2023-11-19 04:52:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure frontend_changed [2023-11-19 04:52:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:52:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure set_backend_state [2023-11-19 04:52:50,904 INFO L138 BoogieDeclarations]: Found implementation of procedure set_backend_state [2023-11-19 04:52:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:52:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_write_io_ring [2023-11-19 04:52:50,905 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_write_io_ring [2023-11-19 04:52:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-19 04:52:50,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-19 04:52:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2023-11-19 04:52:50,906 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2023-11-19 04:52:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2023-11-19 04:52:50,907 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2023-11-19 04:52:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2023-11-19 04:52:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2023-11-19 04:52:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-19 04:52:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-19 04:52:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:52:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:52:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_dev_fatal [2023-11-19 04:52:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_dev_fatal [2023-11-19 04:52:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:52:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:52:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:52:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:52:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_disconnect [2023-11-19 04:52:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_disconnect [2023-11-19 04:52:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:52:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:52:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2023-11-19 04:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2023-11-19 04:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_down [2023-11-19 04:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_down [2023-11-19 04:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:52:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure bind_interdomain_evtchn_to_irqhandler [2023-11-19 04:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_interdomain_evtchn_to_irqhandler [2023-11-19 04:52:50,925 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2023-11-19 04:52:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2023-11-19 04:52:50,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-19 04:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-19 04:52:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-19 04:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-19 04:52:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 04:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 04:52:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_fix_features [2023-11-19 04:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_fix_features [2023-11-19 04:52:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2023-11-19 04:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2023-11-19 04:52:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:52:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:52:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:52:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:52:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2023-11-19 04:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2023-11-19 04:52:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 04:52:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 04:52:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_up [2023-11-19 04:52:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_up [2023-11-19 04:52:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2023-11-19 04:52:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2023-11-19 04:52:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:52:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:52:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:52:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_printf [2023-11-19 04:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_printf [2023-11-19 04:52:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:52:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:52:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unmap_ring_vfree [2023-11-19 04:52:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unmap_ring_vfree [2023-11-19 04:52:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:52:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_change_mtu [2023-11-19 04:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_change_mtu [2023-11-19 04:52:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-11-19 04:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-11-19 04:52:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2023-11-19 04:52:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2023-11-19 04:52:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-19 04:52:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-19 04:52:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:52:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:52:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:52:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-19 04:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-19 04:52:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:52:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 04:52:50,937 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 04:52:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:52:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2023-11-19 04:52:50,938 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2023-11-19 04:52:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:52:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure netback_remove [2023-11-19 04:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_remove [2023-11-19 04:52:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:52:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:52:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:52:50,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:52:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:52:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 04:52:50,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 04:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:52:50,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_gather [2023-11-19 04:52:50,941 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_gather [2023-11-19 04:52:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-19 04:52:50,942 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-19 04:52:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_napi_schedule_or_enable_events [2023-11-19 04:52:50,942 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_napi_schedule_or_enable_events [2023-11-19 04:52:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:52:50,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-19 04:52:50,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-19 04:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-19 04:52:50,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-19 04:52:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 04:52:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 04:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 04:52:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 04:52:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 04:52:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 04:52:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:52:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_get_stats [2023-11-19 04:52:50,945 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_get_stats [2023-11-19 04:52:51,774 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:51,779 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:52,123 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:53:02,341 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:53:04,052 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:53:04,052 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 04:53:04,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:53:04 BoogieIcfgContainer [2023-11-19 04:53:04,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:53:04,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:53:04,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:53:04,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:53:04,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:43" (1/3) ... [2023-11-19 04:53:04,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502b0e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:53:04, skipping insertion in model container [2023-11-19 04:53:04,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:49" (2/3) ... [2023-11-19 04:53:04,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502b0e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:53:04, skipping insertion in model container [2023-11-19 04:53:04,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:53:04" (3/3) ... [2023-11-19 04:53:04,095 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2023-11-19 04:53:04,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:53:04,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:53:04,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:53:04,262 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;@1a6ec4c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:53:04,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:53:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 732 states have (on average 1.3319672131147542) internal successors, (975), 769 states have internal predecessors, (975), 335 states have call successors, (335), 98 states have call predecessors, (335), 97 states have return successors, (329), 317 states have call predecessors, (329), 329 states have call successors, (329) [2023-11-19 04:53:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:53:04,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:04,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:04,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:04,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 132790287, now seen corresponding path program 1 times [2023-11-19 04:53:04,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:04,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105254960] [2023-11-19 04:53:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:04,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:53:05,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:05,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105254960] [2023-11-19 04:53:05,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105254960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:05,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:05,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:53:05,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668240320] [2023-11-19 04:53:05,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:05,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:53:05,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:53:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:05,612 INFO L87 Difference]: Start difference. First operand has 1166 states, 732 states have (on average 1.3319672131147542) internal successors, (975), 769 states have internal predecessors, (975), 335 states have call successors, (335), 98 states have call predecessors, (335), 97 states have return successors, (329), 317 states have call predecessors, (329), 329 states have call successors, (329) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:53:07,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:10,400 INFO L93 Difference]: Finished difference Result 3490 states and 4935 transitions. [2023-11-19 04:53:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:53:10,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-19 04:53:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:10,444 INFO L225 Difference]: With dead ends: 3490 [2023-11-19 04:53:10,444 INFO L226 Difference]: Without dead ends: 2282 [2023-11-19 04:53:10,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 04:53:10,469 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1616 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:10,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 2897 Invalid, 372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 04:53:10,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2023-11-19 04:53:10,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2273. [2023-11-19 04:53:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1428 states have (on average 1.3102240896358543) internal successors, (1871), 1484 states have internal predecessors, (1871), 653 states have call successors, (653), 192 states have call predecessors, (653), 191 states have return successors, (651), 626 states have call predecessors, (651), 651 states have call successors, (651) [2023-11-19 04:53:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3175 transitions. [2023-11-19 04:53:10,790 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3175 transitions. Word has length 17 [2023-11-19 04:53:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:10,791 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 3175 transitions. [2023-11-19 04:53:10,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:53:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3175 transitions. [2023-11-19 04:53:10,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 04:53:10,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:10,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:10,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:53:10,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:10,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:10,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1431312614, now seen corresponding path program 1 times [2023-11-19 04:53:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:10,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733356378] [2023-11-19 04:53:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:10,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 04:53:11,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:11,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733356378] [2023-11-19 04:53:11,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733356378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:11,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:11,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:53:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004369964] [2023-11-19 04:53:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:11,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:53:11,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:53:11,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:11,392 INFO L87 Difference]: Start difference. First operand 2273 states and 3175 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 04:53:13,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:15,339 INFO L93 Difference]: Finished difference Result 5321 states and 7412 transitions. [2023-11-19 04:53:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:53:15,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2023-11-19 04:53:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:15,373 INFO L225 Difference]: With dead ends: 5321 [2023-11-19 04:53:15,374 INFO L226 Difference]: Without dead ends: 3049 [2023-11-19 04:53:15,392 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 04:53:15,394 INFO L413 NwaCegarLoop]: 1429 mSDtfsCounter, 535 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:15,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 2828 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 04:53:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2023-11-19 04:53:15,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3041. [2023-11-19 04:53:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 1933 states have (on average 1.322814278323849) internal successors, (2557), 2000 states have internal predecessors, (2557), 837 states have call successors, (837), 271 states have call predecessors, (837), 270 states have return successors, (835), 807 states have call predecessors, (835), 835 states have call successors, (835) [2023-11-19 04:53:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4229 transitions. [2023-11-19 04:53:15,687 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4229 transitions. Word has length 84 [2023-11-19 04:53:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:15,687 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4229 transitions. [2023-11-19 04:53:15,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 04:53:15,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4229 transitions. [2023-11-19 04:53:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-19 04:53:15,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:15,698 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:15,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:53:15,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:15,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash -117795361, now seen corresponding path program 1 times [2023-11-19 04:53:15,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:15,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544579996] [2023-11-19 04:53:15,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-19 04:53:16,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:16,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544579996] [2023-11-19 04:53:16,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544579996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:16,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:16,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:53:16,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030243535] [2023-11-19 04:53:16,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:16,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:53:16,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:53:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:53:16,417 INFO L87 Difference]: Start difference. First operand 3041 states and 4229 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:53:18,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:19,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:20,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:23,079 INFO L93 Difference]: Finished difference Result 6098 states and 8479 transitions. [2023-11-19 04:53:23,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:53:23,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2023-11-19 04:53:23,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:23,101 INFO L225 Difference]: With dead ends: 6098 [2023-11-19 04:53:23,102 INFO L226 Difference]: Without dead ends: 3052 [2023-11-19 04:53:23,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:53:23,122 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 10 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:23,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4244 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-19 04:53:23,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2023-11-19 04:53:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 3044. [2023-11-19 04:53:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 1936 states have (on average 1.3212809917355373) internal successors, (2558), 2003 states have internal predecessors, (2558), 837 states have call successors, (837), 271 states have call predecessors, (837), 270 states have return successors, (835), 807 states have call predecessors, (835), 835 states have call successors, (835) [2023-11-19 04:53:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4230 transitions. [2023-11-19 04:53:23,282 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4230 transitions. Word has length 144 [2023-11-19 04:53:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:23,284 INFO L495 AbstractCegarLoop]: Abstraction has 3044 states and 4230 transitions. [2023-11-19 04:53:23,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:53:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4230 transitions. [2023-11-19 04:53:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:53:23,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:23,296 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:23,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:53:23,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:23,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:23,297 INFO L85 PathProgramCache]: Analyzing trace with hash -397070677, now seen corresponding path program 1 times [2023-11-19 04:53:23,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:23,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104130232] [2023-11-19 04:53:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:23,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-19 04:53:23,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104130232] [2023-11-19 04:53:23,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104130232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:23,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:53:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932870176] [2023-11-19 04:53:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:23,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:53:23,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:23,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:53:23,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:53:23,998 INFO L87 Difference]: Start difference. First operand 3044 states and 4230 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:53:25,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:27,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []