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-ooo.tag14.ucl.opb
MD5SUMe4be8a88d340bbbbfb27e034f74a6524
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 65
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 254
Number of bits of the biggest sum of numbers8
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark56.8973
Number of variables40605
Total number of constraints118930
Number of constraints which are clauses117190
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1740
Minimum length of a constraint1
Maximum length of a constraint13

Trace number 40855 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-08 23:15:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28926 boxname=wulflinc1 idbench=312 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  e4be8a88d340bbbbfb27e034f74a6524  /oldhome/oroussel/tmp/wulflinc1/normalized-ooo.tag14.ucl.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-ooo.tag14.ucl.opb
IDLAUNCH: 28926
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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	: 2
cpu MHz		: 451.053
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:        915340 kB
Buffers:           164 kB
Cached:          94248 kB
SwapCached:       1536 kB
Active:          26636 kB
Inactive:        70344 kB
HighTotal:      131008 kB
HighFree:        33572 kB
LowTotal:       903652 kB
LowFree:        881768 kB
SwapTotal:     2097136 kB
SwapFree:      2094348 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            16428 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 23:16:32 (client local time) WITH STATUS 0 IN 49.4415 SECONDS
stats: 28926 7 49.4415 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 40605 variables and 118930 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): 0.91 0.94 0.90 2/55 27758
Raw data (stat): 27758 (runsolver) R 27757 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 848662543 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+10.0004 s]
Raw data (loadavg): 0.92 0.94 0.91 2/55 27758
Raw data (stat): 27758 (bsolo_lpr_cuts-) R 27757 8378 8377 0 -1 0 13821 0 0 0 957 40 0 0 25 0 1 0 848662543 48267264 8494 4294967295 134512640 134716908 3221224560 3221222744 1077377470 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11784 8494 1111 63 0 11721 0
vsize: 47136
[startup+20.0012 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 27758
Raw data (stat): 27758 (bsolo_lpr_cuts-) R 27757 8378 8377 0 -1 0 80379 0 0 0 1831 166 0 0 25 0 1 0 848662543 66584576 12922 4294967295 134512640 134716908 3221224560 3221222864 134568037 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 16256 12922 1111 63 0 16193 0
vsize: 65024
[startup+30.002 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 27758
Raw data (stat): 27758 (bsolo_lpr_cuts-) R 27757 8378 8377 0 -1 0 276882 0 0 0 2491 507 0 0 25 0 1 0 848662543 78405632 15777 4294967295 134512640 134716908 3221224560 3221222864 134568037 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 19142 15777 1111 63 0 19079 0
vsize: 76568
[startup+40.0029 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 27758
Raw data (stat): 27758 (bsolo_lpr_cuts-) R 27757 8378 8377 0 -1 0 434272 0 0 0 3191 807 0 0 25 0 1 0 848662543 158871552 37651 4294967295 134512640 134716908 3221224560 3221223200 134594947 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 38787 37651 1111 63 0 38724 0
vsize: 155148
[startup+49.457 s]
Raw data (loadavg): 0.96 0.95 0.91 1/54 27758
Raw data (stat): 27758 (bsolo_lpr_cuts-) R 27757 8378 8377 0 -1 0 434272 0 0 0 3191 807 0 0 25 0 1 0 848662543 158871552 37651 4294967295 134512640 134716908 3221224560 3221223200 134594947 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 38787 37651 1111 63 0 38724 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 49.4567
CPU time (s): 49.4415
CPU user time (s): 35.7526
CPU system time (s): 13.6889
CPU usage (%): 99.9692
Max. virtual memory (Kb): 155148
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####