Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Nameweb/uclid_pb_benchmarks/normalized-cache-ibm-q-unbounded.Icl2arity.ucl.opb
MD5SUM447ba4f56421c253ecaa010c1957f4f6
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 66
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 256
Number of bits of the biggest sum of numbers9
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark5.83011
Number of variables23837
Total number of constraints67568
Number of constraints which are clauses64398
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3170
Minimum length of a constraint1
Maximum length of a constraint13

Trace number 7810

Launcher Data

LAUNCH ON wulflinc15 THE 2005-09-20 14:33:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4993 boxname=wulflinc15 idbench=305 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  447ba4f56421c253ecaa010c1957f4f6  /oldhome/oroussel/tmp/wulflinc15/normalized-cache-ibm-q-unbounded.Icl2arity.ucl.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 4993
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        825720 kB
Buffers:         30892 kB
Cached:         148292 kB
SwapCached:        744 kB
Active:          68992 kB
Inactive:       112800 kB
HighTotal:      131008 kB
HighFree:         3780 kB
LowTotal:       903652 kB
LowFree:        821940 kB
SwapTotal:     2097136 kB
SwapFree:      2095884 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5732 kB
Slab:            21600 kB
Committed_AS:    64136 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 14:34:14 (client local time) WITH STATUS 20 IN 38.8561 SECONDS
stats: 4993 7 38.8561 20

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c starting to Solve
c #variables read: 23837 - #constraints read: 67567
c total time              : 38.83 s
s UNSATISFIABLE

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/13484/stat): 13484 (Pueblo) R 13483 13484 31778 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1801052183 167936 3 4294967295 134512640 134578447 3221224624 3221224624 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/13484/statm): 41 3 40 18 0 23 0
[pid=13484] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libstdc++.so.5
open syscall for file tls/i686/libstdc++.so.5
open syscall for file tls/mmx/libstdc++.so.5
open syscall for file tls/libstdc++.so.5
open syscall for file i686/mmx/libstdc++.so.5
open syscall for file i686/libstdc++.so.5
open syscall for file mmx/libstdc++.so.5
open syscall for file libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/libstdc++.so.5
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++.so.5
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6

[startup+10.0031 s]
Raw data (loadavg): 0.93 0.98 0.92 2/56 13484
Raw data (/proc/13484/stat): 13484 (Pueblo) R 13483 13484 31778 0 -1 0 3691 0 0 0 983 12 0 0 25 0 1 0 1801052183 17301504 3657 4294967295 134512640 134578447 3221224624 3221223632 134531609 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/13484/statm): 4224 3657 566 18 0 4206 0
[pid=13484] vsize: 16896
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 16896

[startup+20.004 s]
Raw data (loadavg): 0.94 0.98 0.92 2/56 13484
Raw data (/proc/13484/stat): 13484 (Pueblo) R 13483 13484 31778 0 -1 0 4087 0 0 0 1982 13 0 0 25 0 1 0 1801052183 19050496 4053 4294967295 134512640 134578447 3221224624 3221223632 134531609 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/13484/statm): 4651 4053 566 18 0 4633 0
[pid=13484] vsize: 18604
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 18604

[startup+30.0048 s]
Raw data (loadavg): 0.95 0.98 0.92 2/56 13484
Raw data (/proc/13484/stat): 13484 (Pueblo) R 13483 13484 31778 0 -1 0 4922 0 0 0 2980 15 0 0 25 0 1 0 1801052183 22634496 4888 4294967295 134512640 134578447 3221224624 3221223584 134559013 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/13484/statm): 5526 4888 566 18 0 5508 0
[pid=13484] vsize: 22104
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 22104
One traced child (pid=13484) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 38.9019
CPU time (s): 38.8561
CPU user time (s): 38.6891
CPU system time (s): 0.166974
CPU usage (%): 99.8823
Max. virtual memory (cumulated for all children) (Kb): 22104

Verifier Data

ERROR: no interpretation found !