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.Ic22arity.ucl.opb
MD5SUM6bfe4c2dce1e5dbe61cc34b52b1b387f
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 130
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 512
Number of bits of the biggest sum of numbers10
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark50.7543
Number of variables87751
Total number of constraints254772
Number of constraints which are clauses247060
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints7712
Minimum length of a constraint1
Maximum length of a constraint15

Trace number 9771

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 15:18:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8508 boxname=wulflinc23 idbench=304 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6bfe4c2dce1e5dbe61cc34b52b1b387f  /oldhome/oroussel/tmp/wulflinc23/normalized-cache-ibm-q-unbounded.Ic22arity.ucl.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-cache-ibm-q-unbounded.Ic22arity.ucl.opb
IDLAUNCH: 8508
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        914444 kB
Buffers:         13820 kB
Cached:          87636 kB
SwapCached:          0 kB
Active:          67584 kB
Inactive:        36728 kB
HighTotal:      131008 kB
HighFree:        39144 kB
LowTotal:       903652 kB
LowFree:        875300 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10196 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 15:21:21 (client local time) WITH STATUS 20 IN 190.007 SECONDS
stats: 8508 7 190.007 20

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

c Decision: 9695/246795	Time: 44.2173/86400
c Decision: 9707/246795	Time: 64.7452/86400
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/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 21203189 1527808 2 4294967295 134512640 135987407 3221224544 3221224544 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 373 2 364 364 0 9 0
[pid=7225] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-cache-ibm-q-unbounded.Ic22arity.ucl.opb

[startup+10.0008 s]
Raw data (loadavg): 0.89 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 5487 0 0 0 982 15 0 0 25 0 1 0 21203189 19382272 3555 4294967295 134512640 135987407 3221224544 3221221740 134536007 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 4732 3555 364 364 0 4368 0
[pid=7225] vsize: 18928
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 18928

[startup+20.0014 s]
Raw data (loadavg): 0.91 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 10810 0 0 0 1964 32 0 0 25 0 1 0 21203189 36777984 6858 4294967295 134512640 135987407 3221224544 3221221776 134575883 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 8979 6858 364 364 0 8615 0
[pid=7225] vsize: 35916
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 35916

[startup+30.0011 s]
Raw data (loadavg): 0.92 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 25011 0 0 0 2928 66 0 0 25 0 1 0 21203189 91607040 16987 4294967295 134512640 135987407 3221224544 3221218032 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 22365 16987 364 364 0 22001 0
[pid=7225] vsize: 89460
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 89460

[startup+40.0017 s]
Raw data (loadavg): 0.93 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 31866 0 0 0 3894 91 0 0 25 0 1 0 21203189 98721792 20180 4294967295 134512640 135987407 3221224544 3221223104 134788469 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 24102 20180 364 364 0 23738 0
[pid=7225] vsize: 96408
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (Kb) 96408

[startup+50.0024 s]
Raw data (loadavg): 0.94 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 32583 0 0 0 4881 96 0 0 25 0 1 0 21203189 102064128 20831 4294967295 134512640 135987407 3221224544 3221223104 134788454 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 24918 20831 364 364 0 24554 0
[pid=7225] vsize: 99672
Current children cumulated CPU time (s) 49.77
Current children cumulated vsize (Kb) 99672

[startup+60.002 s]
Raw data (loadavg): 0.95 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 32878 0 0 0 5866 101 0 0 25 0 1 0 21203189 103641088 21126 4294967295 134512640 135987407 3221224544 3221223232 134811805 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25303 21126 364 364 0 24939 0
[pid=7225] vsize: 101212
Current children cumulated CPU time (s) 59.67
Current children cumulated vsize (Kb) 101212

[startup+70.0026 s]
Raw data (loadavg): 0.96 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 32962 0 0 0 6847 108 0 0 25 0 1 0 21203189 104046592 21210 4294967295 134512640 135987407 3221224544 3221223232 134811770 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25402 21210 364 364 0 25038 0
[pid=7225] vsize: 101608
Current children cumulated CPU time (s) 69.55
Current children cumulated vsize (Kb) 101608

[startup+80.0033 s]
Raw data (loadavg): 0.96 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 33605 0 0 0 7835 113 0 0 25 0 1 0 21203189 104722432 21370 4294967295 134512640 135987407 3221224544 3221223232 134812053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25567 21370 364 364 0 25203 0
[pid=7225] vsize: 102268
Current children cumulated CPU time (s) 79.48
Current children cumulated vsize (Kb) 102268

[startup+90.0039 s]
Raw data (loadavg): 0.97 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 33888 0 0 0 8823 118 0 0 25 0 1 0 21203189 105660416 21587 4294967295 134512640 135987407 3221224544 3221223360 134824720 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25796 21587 364 364 0 25432 0
[pid=7225] vsize: 103184
Current children cumulated CPU time (s) 89.41
Current children cumulated vsize (Kb) 103184

[startup+100.004 s]
Raw data (loadavg): 0.97 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34401 0 0 0 9807 125 0 0 25 0 1 0 21203189 105660416 21617 4294967295 134512640 135987407 3221224544 3221223232 134811770 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25796 21617 364 364 0 25432 0
[pid=7225] vsize: 103184
Current children cumulated CPU time (s) 99.32
Current children cumulated vsize (Kb) 103184

[startup+110.004 s]
Raw data (loadavg): 0.98 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34483 0 0 0 10796 129 0 0 25 0 1 0 21203189 105930752 21699 4294967295 134512640 135987407 3221224544 3221223408 134812647 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25862 21699 364 364 0 25498 0
[pid=7225] vsize: 103448
Current children cumulated CPU time (s) 109.25
Current children cumulated vsize (Kb) 103448

[startup+120.005 s]
Raw data (loadavg): 0.98 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34498 0 0 0 11780 136 0 0 25 0 1 0 21203189 105930752 21714 4294967295 134512640 135987407 3221224544 3221223232 134811805 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25862 21714 364 364 0 25498 0
[pid=7225] vsize: 103448
Current children cumulated CPU time (s) 119.16
Current children cumulated vsize (Kb) 103448

[startup+130.004 s]
Raw data (loadavg): 0.98 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34515 0 0 0 12765 140 0 0 25 0 1 0 21203189 105930752 21731 4294967295 134512640 135987407 3221224544 3221223104 134788454 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 25862 21731 364 364 0 25498 0
[pid=7225] vsize: 103448
Current children cumulated CPU time (s) 129.05
Current children cumulated vsize (Kb) 103448

[startup+140.005 s]
Raw data (loadavg): 0.98 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34638 0 0 0 13752 144 0 0 25 0 1 0 21203189 106606592 21854 4294967295 134512640 135987407 3221224544 3221223392 134789987 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 26027 21854 364 364 0 25663 0
[pid=7225] vsize: 104108
Current children cumulated CPU time (s) 138.96
Current children cumulated vsize (Kb) 104108

[startup+150.006 s]
Raw data (loadavg): 0.99 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34672 0 0 0 14738 149 0 0 25 0 1 0 21203189 106606592 21888 4294967295 134512640 135987407 3221224544 3221223232 134811741 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7225/statm): 26027 21888 364 364 0 25663 0
[pid=7225] vsize: 104108
Current children cumulated CPU time (s) 148.87
Current children cumulated vsize (Kb) 104108

[startup+160.005 s]
Raw data (loadavg): 0.99 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34735 0 0 0 15721 155 0 0 25 0 1 0 21203189 106737664 21918 4294967295 134512640 135987407 3221224544 3221223104 134788496 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 26059 21918 364 364 0 25695 0
[pid=7225] vsize: 104236
Current children cumulated CPU time (s) 158.76
Current children cumulated vsize (Kb) 104236

[startup+170.006 s]
Raw data (loadavg): 0.99 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 34982 0 0 0 16697 163 0 0 25 0 1 0 21203189 107823104 22132 4294967295 134512640 135987407 3221224544 3221223360 134824708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 26324 22132 364 364 0 25960 0
[pid=7225] vsize: 105296
Current children cumulated CPU time (s) 168.6
Current children cumulated vsize (Kb) 105296

[startup+180.006 s]
Raw data (loadavg): 0.99 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 35012 0 0 0 17671 173 0 0 25 0 1 0 21203189 107986944 22162 4294967295 134512640 135987407 3221224544 3221223232 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 26364 22162 364 364 0 26000 0
[pid=7225] vsize: 105456
Current children cumulated CPU time (s) 178.44
Current children cumulated vsize (Kb) 105456

[startup+190.006 s]
Raw data (loadavg): 0.99 0.97 0.99 2/55 7225
Raw data (/proc/7225/stat): 7225 (pb2sat) R 7224 7225 4060 0 -1 0 35110 0 0 0 18649 180 0 0 25 0 1 0 21203189 108388352 22260 4294967295 134512640 135987407 3221224544 3221223232 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7225/statm): 26462 22260 364 364 0 26098 0
[pid=7225] vsize: 105848
Current children cumulated CPU time (s) 188.29
Current children cumulated vsize (Kb) 105848
One traced child (pid=7225) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 191.739
CPU time (s): 190.007
CPU user time (s): 188.152
CPU system time (s): 1.85472
CPU usage (%): 99.0969
Max. virtual memory (cumulated for all children) (Kb): 105848

Verifier Data

ERROR: no interpretation found !