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).
  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

Namenormalized-opb/web/uclid_pb_benchmarks/normalized-cache.inv14.ucl.opb
MD5SUM5b41c3eb79e4b3bf301d25b20a1c7b76
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
Satisfiable
(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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables62704
Total number of constraints187107
Number of constraints which are clauses186603
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints504
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 39660

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-07 15:53:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27728 boxname=wulflinc4 idbench=286 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  5b41c3eb79e4b3bf301d25b20a1c7b76  /oldhome/oroussel/tmp/wulflinc4/normalized-cache.inv14.ucl.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-cache.inv14.ucl.opb
IDLAUNCH: 27728
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        885400 kB
Buffers:         33856 kB
Cached:          84340 kB
SwapCached:       8080 kB
Active:          14892 kB
Inactive:       112744 kB
HighTotal:      131008 kB
HighFree:        92036 kB
LowTotal:       903652 kB
LowFree:        793364 kB
SwapTotal:     2097136 kB
SwapFree:      2088092 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15944 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 15:55:17 (client local time) WITH STATUS 0 IN 107.433 SECONDS
stats: 27728 7 107.433 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 62704 variables and 187107 constraints.
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (runsolver) R 17698 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 894215295 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0001 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 12812 0 0 0 964 32 0 0 25 0 1 0 894215295 48947200 8650 4294967295 134512640 134716908 3221224576 3221222628 1077782939 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11950 8650 1111 63 0 11887 0
vsize: 47800
[startup+20.0013 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 87102 0 0 0 1831 166 0 0 25 0 1 0 894215295 69070848 13542 4294967295 134512640 134716908 3221224576 3221222880 134568037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 16863 13550 1111 63 0 16800 0
vsize: 67452
[startup+30.001 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 293316 0 0 0 2467 529 0 0 25 0 1 0 894215295 80650240 16310 4294967295 134512640 134716908 3221224576 3221223408 134562757 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 19690 16310 1111 63 0 19627 0
vsize: 78760
[startup+40.0017 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 520005 0 0 0 3054 941 0 0 25 0 1 0 894215295 89870336 18599 4294967295 134512640 134716908 3221224576 3221222984 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 21941 18599 1111 63 0 21878 0
vsize: 87764
[startup+50.0036 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 748660 0 0 0 3645 1349 0 0 25 0 1 0 894215295 98480128 20664 4294967295 134512640 134716908 3221224576 3221222880 134568040 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 24043 20664 1111 63 0 23980 0
vsize: 96172
[startup+60.0034 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 970231 0 0 0 4226 1768 0 0 25 0 1 0 894215295 106606592 22679 4294967295 134512640 134716908 3221224576 3221222984 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 26079 22683 1111 63 0 26016 0
vsize: 104108
[startup+70.0033 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 1186531 0 0 0 4838 2156 0 0 25 0 1 0 894215295 113250304 24327 4294967295 134512640 134716908 3221224576 3221222776 1077799185 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 27649 24328 1111 63 0 27586 0
vsize: 110596
[startup+80.0035 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 1401041 0 0 0 5445 2549 0 0 25 0 1 0 894215295 119595008 25877 4294967295 134512640 134716908 3221224576 3221222880 134568037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 29198 25884 1111 63 0 29135 0
vsize: 116792
[startup+90.0041 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 1629154 0 0 0 5973 3021 0 0 25 0 1 0 894215295 554897408 134076 4294967295 134512640 134716908 3221224576 3221223104 134554857 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 135473 134083 1111 63 0 135410 0
vsize: 541892
[startup+100.004 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 1849187 0 8 0 6414 3572 0 0 25 0 1 0 894215295 580173824 139200 4294967295 134512640 134716908 3221224576 3221223216 134606484 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 141644 139209 1111 63 0 141581 0
vsize: 566576
[startup+107.598 s]
Raw data (loadavg): 0.99 0.97 0.93 1/53 17699
Raw data (stat): 17699 (bsolo_lpr-v2) R 17698 21152 21151 0 -1 0 1849187 0 8 0 6414 3572 0 0 25 0 1 0 894215295 580173824 139200 4294967295 134512640 134716908 3221224576 3221223216 134606484 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 141644 139209 1111 63 0 141581 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 107.598
CPU time (s): 107.433
CPU user time (s): 67.2458
CPU system time (s): 40.1869
CPU usage (%): 99.8465
Max. virtual memory (Kb): 566576
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####