./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--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 81d1008401e9b638c804223ae1edaed37e73b80d2f51872c4d92327d9c04897f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:36,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:36,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:18:36,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:36,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:36,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:36,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:36,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:36,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:36,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:36,696 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:36,697 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:36,697 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:36,698 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:36,698 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:36,699 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:36,699 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:36,700 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:36,701 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:36,701 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:36,702 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:36,703 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:36,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:36,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:36,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:36,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:36,706 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:36,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:36,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:36,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:36,708 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:36,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:36,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:36,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:36,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:36,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:36,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:36,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:36,712 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:36,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:36,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:36,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:36,714 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:36,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:36,715 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_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d1008401e9b638c804223ae1edaed37e73b80d2f51872c4d92327d9c04897f [2023-11-23 21:18:36,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:37,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:37,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:37,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:37,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:37,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-23 21:18:40,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:40,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:40,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-23 21:18:40,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/data/492e2845d/e52802490aa548f6b9dc7d581be2fa8b/FLAG85c1a394d [2023-11-23 21:18:40,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/data/492e2845d/e52802490aa548f6b9dc7d581be2fa8b [2023-11-23 21:18:40,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:40,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:41,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:41,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:41,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:41,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:40" (1/1) ... [2023-11-23 21:18:41,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbe7e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:41, skipping insertion in model container [2023-11-23 21:18:41,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:40" (1/1) ... [2023-11-23 21:18:41,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:43,516 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_b116baba-9e34-4213-821e-08f3ae5d6eeb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281155,281168] [2023-11-23 21:18:43,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:43,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:43,765 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"); [3818] [2023-11-23 21:18:43,767 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)); [3825] [2023-11-23 21:18:43,767 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"); [3833-3834] [2023-11-23 21:18:43,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3848-3849] [2023-11-23 21:18:43,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsfl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3857] [2023-11-23 21:18:43,774 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3957-3958] [2023-11-23 21:18:43,777 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3969-3970] [2023-11-23 21:18:43,778 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3973-3974] [2023-11-23 21:18:43,778 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3977-3978] [2023-11-23 21:18:43,779 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3981-3982] [2023-11-23 21:18:43,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4082] [2023-11-23 21:18:43,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4089] [2023-11-23 21:18:43,865 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/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (398), "i" (12UL)); [4731-4732] [2023-11-23 21:18:43,885 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/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (626), "i" (12UL)); [5016-5017] [2023-11-23 21:18:43,905 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/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (824), "i" (12UL)); [5313-5314] [2023-11-23 21:18:43,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5334] [2023-11-23 21:18:43,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [5553] [2023-11-23 21:18:43,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5604] [2023-11-23 21:18:43,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6038] [2023-11-23 21:18:43,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6096] [2023-11-23 21:18:43,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6111] [2023-11-23 21:18:43,985 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/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (1711), "i" (12UL)); [6238-6239] [2023-11-23 21:18:43,987 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/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (1714), "i" (12UL)); [6245-6246] [2023-11-23 21:18:43,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6256] [2023-11-23 21:18:43,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6277] [2023-11-23 21:18:44,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6567] [2023-11-23 21:18:44,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6658] [2023-11-23 21:18:44,040 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/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (2227), "i" (12UL)); [6876-6877] [2023-11-23 21:18:44,292 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_b116baba-9e34-4213-821e-08f3ae5d6eeb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281155,281168] [2023-11-23 21:18:44,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:44,399 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:44,399 WARN L675 CHandler]: The function __bad_unaligned_access_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:44,406 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:44,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44 WrapperNode [2023-11-23 21:18:44,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:44,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:44,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:44,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:44,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,880 INFO L138 Inliner]: procedures = 268, calls = 3045, calls flagged for inlining = 107, calls inlined = 104, statements flattened = 8209 [2023-11-23 21:18:44,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:44,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:44,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:44,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:44,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:44,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:45,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:45,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:45,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:45,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:45,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:45,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:45,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:45,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:45,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (1/1) ... [2023-11-23 21:18:45,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:45,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:45,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b116baba-9e34-4213-821e-08f3ae5d6eeb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2023-11-23 21:18:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2023-11-23 21:18:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2023-11-23 21:18:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2023-11-23 21:18:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2023-11-23 21:18:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2023-11-23 21:18:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:18:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:18:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:18:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:18:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:18:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:18:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:18:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:18:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure scan_periodic [2023-11-23 21:18:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_periodic [2023-11-23 21:18:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:18:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:18:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-23 21:18:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-23 21:18:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:18:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:18:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_create [2023-11-23 21:18:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_create [2023-11-23 21:18:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_readl [2023-11-23 21:18:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_readl [2023-11-23 21:18:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_run [2023-11-23 21:18:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_run [2023-11-23 21:18:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:18:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:18:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2023-11-23 21:18:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2023-11-23 21:18:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure qh_put [2023-11-23 21:18:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_put [2023-11-23 21:18:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_irq [2023-11-23 21:18:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_irq [2023-11-23 21:18:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:18:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:18:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure scan_async [2023-11-23 21:18:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_async [2023-11-23 21:18:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-23 21:18:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-23 21:18:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:18:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:18:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2023-11-23 21:18:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2023-11-23 21:18:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_endpoint_disable [2023-11-23 21:18:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_endpoint_disable [2023-11-23 21:18:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2023-11-23 21:18:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2023-11-23 21:18:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:18:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:18:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 21:18:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 21:18:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-23 21:18:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-23 21:18:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qtd_free [2023-11-23 21:18:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qtd_free [2023-11-23 21:18:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:18:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:18:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:18:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2023-11-23 21:18:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2023-11-23 21:18:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:18:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2023-11-23 21:18:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2023-11-23 21:18:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:18:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:18:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:18:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_writel [2023-11-23 21:18:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_writel [2023-11-23 21:18:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:18:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:18:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_shutdown [2023-11-23 21:18:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_shutdown [2023-11-23 21:18:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-23 21:18:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-23 21:18:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_alloc [2023-11-23 21:18:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_alloc [2023-11-23 21:18:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:18:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:18:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2023-11-23 21:18:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2023-11-23 21:18:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_enqueue [2023-11-23 21:18:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_enqueue [2023-11-23 21:18:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2023-11-23 21:18:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2023-11-23 21:18:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_usecs [2023-11-23 21:18:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_usecs [2023-11-23 21:18:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure intr_deschedule [2023-11-23 21:18:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_deschedule [2023-11-23 21:18:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:18:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:18:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_buf_alloc [2023-11-23 21:18:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_buf_alloc [2023-11-23 21:18:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:18:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:18:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:18:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:18:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_control [2023-11-23 21:18:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_control [2023-11-23 21:18:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2023-11-23 21:18:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2023-11-23 21:18:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2023-11-23 21:18:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:18:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:18:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2023-11-23 21:18:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2023-11-23 21:18:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 21:18:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 21:18:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:18:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_probe [2023-11-23 21:18:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_probe [2023-11-23 21:18:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:18:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:18:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action [2023-11-23 21:18:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action [2023-11-23 21:18:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:18:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:18:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:18:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_get_frame [2023-11-23 21:18:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_get_frame [2023-11-23 21:18:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:18:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:18:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_stop [2023-11-23 21:18:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_stop [2023-11-23 21:18:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-23 21:18:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-23 21:18:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:18:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:18:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:18:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:18:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:18:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2023-11-23 21:18:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2023-11-23 21:18:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2023-11-23 21:18:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2023-11-23 21:18:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __oxu_urb_enqueue [2023-11-23 21:18:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __oxu_urb_enqueue [2023-11-23 21:18:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_remove [2023-11-23 21:18:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_remove [2023-11-23 21:18:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-23 21:18:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-23 21:18:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:18:45,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:18:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:18:45,503 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:18:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:18:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:18:45,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:18:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:18:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:18:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:18:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:18:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:18:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:18:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2023-11-23 21:18:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2023-11-23 21:18:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure qh_unlink_periodic [2023-11-23 21:18:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_unlink_periodic [2023-11-23 21:18:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:18:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:18:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-23 21:18:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-23 21:18:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:18:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-23 21:18:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-23 21:18:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_async [2023-11-23 21:18:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_async [2023-11-23 21:18:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2023-11-23 21:18:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2023-11-23 21:18:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_to_hcd [2023-11-23 21:18:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_to_hcd [2023-11-23 21:18:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:18:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:18:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-23 21:18:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-23 21:18:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qh_alloc [2023-11-23 21:18:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qh_alloc [2023-11-23 21:18:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_suspend [2023-11-23 21:18:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_suspend [2023-11-23 21:18:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2023-11-23 21:18:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2023-11-23 21:18:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-23 21:18:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-23 21:18:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:18:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:18:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2023-11-23 21:18:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2023-11-23 21:18:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:18:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_status_data [2023-11-23 21:18:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_status_data [2023-11-23 21:18:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_shutdown [2023-11-23 21:18:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_shutdown [2023-11-23 21:18:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2023-11-23 21:18:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2023-11-23 21:18:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:18:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:18:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure qh_get [2023-11-23 21:18:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_get [2023-11-23 21:18:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:18:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:18:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2023-11-23 21:18:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2023-11-23 21:18:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2023-11-23 21:18:45,512 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2023-11-23 21:18:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action_done [2023-11-23 21:18:45,512 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action_done [2023-11-23 21:18:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:18:45,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:18:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:18:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:18:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2023-11-23 21:18:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2023-11-23 21:18:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2023-11-23 21:18:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2023-11-23 21:18:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_free [2023-11-23 21:18:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_free [2023-11-23 21:18:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2023-11-23 21:18:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2023-11-23 21:18:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-23 21:18:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-23 21:18:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2023-11-23 21:18:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2023-11-23 21:18:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-23 21:18:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-23 21:18:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2023-11-23 21:18:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2023-11-23 21:18:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:18:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:18:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2023-11-23 21:18:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2023-11-23 21:18:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:18:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:18:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_resume [2023-11-23 21:18:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_resume [2023-11-23 21:18:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_dequeue [2023-11-23 21:18:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_dequeue [2023-11-23 21:18:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:18:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:18:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-23 21:18:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-23 21:18:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:18:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:18:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:18:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:18:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2023-11-23 21:18:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2023-11-23 21:18:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_remove [2023-11-23 21:18:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_remove [2023-11-23 21:18:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2023-11-23 21:18:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2023-11-23 21:18:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_oxu [2023-11-23 21:18:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_oxu [2023-11-23 21:18:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_reset [2023-11-23 21:18:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_reset [2023-11-23 21:18:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:18:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:18:46,569 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:46,583 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:47,367 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:18:56,980 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:03,157 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:03,158 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:19:03,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:03 BoogieIcfgContainer [2023-11-23 21:19:03,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:03,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:03,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:03,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:03,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:40" (1/3) ... [2023-11-23 21:19:03,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f6e554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:03, skipping insertion in model container [2023-11-23 21:19:03,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:44" (2/3) ... [2023-11-23 21:19:03,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f6e554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:03, skipping insertion in model container [2023-11-23 21:19:03,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:03" (3/3) ... [2023-11-23 21:19:03,173 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-23 21:19:03,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:03,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:19:03,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:03,370 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;@619c7d73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:03,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:19:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 2339 states, 1451 states have (on average 1.3425223983459682) internal successors, (1948), 1517 states have internal predecessors, (1948), 765 states have call successors, (765), 122 states have call predecessors, (765), 121 states have return successors, (759), 749 states have call predecessors, (759), 759 states have call successors, (759) [2023-11-23 21:19:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 21:19:03,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:03,443 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:03,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:03,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:03,452 INFO L85 PathProgramCache]: Analyzing trace with hash -839396699, now seen corresponding path program 1 times [2023-11-23 21:19:03,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:03,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062807526] [2023-11-23 21:19:03,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:03,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 21:19:05,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:05,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062807526] [2023-11-23 21:19:05,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062807526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:05,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:05,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:19:05,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410601886] [2023-11-23 21:19:05,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:05,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:05,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:05,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:05,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:05,164 INFO L87 Difference]: Start difference. First operand has 2339 states, 1451 states have (on average 1.3425223983459682) internal successors, (1948), 1517 states have internal predecessors, (1948), 765 states have call successors, (765), 122 states have call predecessors, (765), 121 states have return successors, (759), 749 states have call predecessors, (759), 759 states have call successors, (759) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:19:07,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:09,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:13,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:18,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:18,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:18,567 INFO L93 Difference]: Finished difference Result 6915 states and 10273 transitions. [2023-11-23 21:19:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:18,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 192 [2023-11-23 21:19:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:18,655 INFO L225 Difference]: With dead ends: 6915 [2023-11-23 21:19:18,655 INFO L226 Difference]: Without dead ends: 4575 [2023-11-23 21:19:18,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:18,687 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 3382 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 6249 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:18,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3382 Valid, 6249 Invalid, 701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 694 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2023-11-23 21:19:18,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2023-11-23 21:19:19,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4575. [2023-11-23 21:19:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 2848 states have (on average 1.3370786516853932) internal successors, (3808), 2964 states have internal predecessors, (3808), 1487 states have call successors, (1487), 240 states have call predecessors, (1487), 239 states have return successors, (1486), 1466 states have call predecessors, (1486), 1486 states have call successors, (1486) [2023-11-23 21:19:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 6781 transitions. [2023-11-23 21:19:19,339 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 6781 transitions. Word has length 192 [2023-11-23 21:19:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:19,346 INFO L495 AbstractCegarLoop]: Abstraction has 4575 states and 6781 transitions. [2023-11-23 21:19:19,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:19:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 6781 transitions. [2023-11-23 21:19:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-23 21:19:19,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:19,379 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:19,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:19:19,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:19,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1565658182, now seen corresponding path program 1 times [2023-11-23 21:19:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:19,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483202687] [2023-11-23 21:19:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-11-23 21:19:20,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:20,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483202687] [2023-11-23 21:19:20,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483202687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:20,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:20,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:19:20,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756507828] [2023-11-23 21:19:20,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:20,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:20,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:20,144 INFO L87 Difference]: Start difference. First operand 4575 states and 6781 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:19:21,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:25,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:25,736 INFO L93 Difference]: Finished difference Result 4575 states and 6781 transitions. [2023-11-23 21:19:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:25,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2023-11-23 21:19:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:25,742 INFO L225 Difference]: With dead ends: 4575 [2023-11-23 21:19:25,742 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:19:25,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:25,783 INFO L413 NwaCegarLoop]: 3086 mSDtfsCounter, 3379 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:25,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 3086 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-11-23 21:19:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:19:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:19:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:19:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:19:25,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2023-11-23 21:19:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:25,792 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:19:25,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:19:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:19:25,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:19:25,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:19:25,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:19:25,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.