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-dlx1c.rwmem1.ucl.opb
MD5SUMa87f19e00caac3c4982ef2b4adfd05fa
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 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 benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.33464
Number of variables7578
Total number of constraints21401
Number of constraints which are clauses20501
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints900
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 327

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-18 09:28:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=312 boxname=wulflinc17 idbench=312 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  a87f19e00caac3c4982ef2b4adfd05fa  /oldhome/oroussel/tmp/wulflinc17/normalized-dlx1c.rwmem1.ucl.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc17/normalized-dlx1c.rwmem1.ucl.opb
IDLAUNCH: 312
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        953848 kB
Buffers:         33528 kB
Cached:          18156 kB
SwapCached:        608 kB
Active:          48568 kB
Inactive:         5596 kB
HighTotal:      131008 kB
HighFree:       111384 kB
LowTotal:       903652 kB
LowFree:        842464 kB
SwapTotal:     2097892 kB
SwapFree:      2096684 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5768 kB
Slab:            20964 kB
Committed_AS:    64148 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 09:29:51 (client local time) WITH STATUS 20 IN 104.497 SECONDS
stats: 312 7 104.497 20

Solver Data

c INFO: OSL Context initialized.
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 7578 variables and 21401 constraints.
c Using non-optimization problem switches.
c No problem reductions applied in OPT. instance.
c	preprocess terminated. Elapsed time: 3.567
c After prepocess the problem consists of 7574 variables and 21391 constraints.
c Restart #1 #Var: 7574 #Dec: 1818 LB: 0 @ 9.238
c Restart #2 #Var: 7219 #Dec: 6230 LB: 0 @ 21.691
c Restart #3 #Var: 7219 #Dec: 13312 LB: 0 @ 37.253
c Restart #4 #Var: 7219 #Dec: 18607 LB: 0 @ 52.598
c Restart #5 #Var: 5719 #Dec: 23229 LB: 0 @ 72.885
c Restart #6 #Var: 4419 #Dec: 29304 LB: 0 @ 94.27
s UNSATISFIABLE
c Exit Code: 20
c Total time: 104.48 s

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/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1840198606 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 107 3 90 68 0 39 0
[pid=21670] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
open syscall for file tls/i686/libosl.so
open syscall for file tls/mmx/libosl.so
open syscall for file tls/libosl.so
open syscall for file i686/mmx/libosl.so
open syscall for file i686/libosl.so
open syscall for file mmx/libosl.so
open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/libosl.so
open syscall for file tls/i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/libstdc++-libc6.2-2.so.3
open syscall for file tls/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/libstdc++-libc6.2-2.so.3
open syscall for file i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file i686/libstdc++-libc6.2-2.so.3
open syscall for file mmx/libstdc++-libc6.2-2.so.3
open syscall for file libstdc++-libc6.2-2.so.3
open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
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/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
open syscall for file tls/mmx/libpthread.so.0
open syscall for file tls/libpthread.so.0
open syscall for file i686/mmx/libpthread.so.0
open syscall for file i686/libpthread.so.0
open syscall for file mmx/libpthread.so.0
open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
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
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
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open syscall for file /oldhome/oroussel/.OptimizationSolutions/nodelock
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-dlx1c.rwmem1.ucl.opb

[startup+10.0023 s]
Raw data (loadavg): 0.91 0.95 0.90 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 4749 0 0 0 966 17 0 0 25 0 1 0 1840198606 22765568 4660 4294967295 134512640 134736556 3221224560 3221223068 134634428 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 5558 4660 1116 68 0 5490 0
[pid=21670] vsize: 22232
Current children cumulated CPU time (s) 9.83
Current children cumulated vsize (Kb) 22232

[startup+20.0029 s]
Raw data (loadavg): 0.93 0.95 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 4845 0 0 0 1949 24 0 0 25 0 1 0 1840198606 23171072 4756 4294967295 134512640 134736556 3221224560 3221223104 134543676 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/21670/statm): 5657 4756 1116 68 0 5589 0
[pid=21670] vsize: 22628
Current children cumulated CPU time (s) 19.73
Current children cumulated vsize (Kb) 22628

[startup+30.0035 s]
Raw data (loadavg): 0.94 0.95 0.91 1/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) T 21669 21670 19316 0 -1 0 4905 0 0 0 2926 31 0 0 25 0 1 0 1840198606 23306240 4816 4294967295 134512640 134736556 3221224560 3221223452 1077781665 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/21670/statm): 5690 4816 1116 68 0 5622 0
[pid=21670] vsize: 22760
Current children cumulated CPU time (s) 29.57
Current children cumulated vsize (Kb) 22760

[startup+40.0041 s]
Raw data (loadavg): 0.95 0.95 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 4985 0 0 0 3903 37 0 0 25 0 1 0 1840198606 23711744 4896 4294967295 134512640 134736556 3221224560 3221223256 134537586 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/21670/statm): 5789 4896 1116 68 0 5721 0
[pid=21670] vsize: 23156
Current children cumulated CPU time (s) 39.4
Current children cumulated vsize (Kb) 23156

[startup+50.0047 s]
Raw data (loadavg): 0.95 0.95 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 5106 0 0 0 4886 44 0 0 25 0 1 0 1840198606 24117248 5017 4294967295 134512640 134736556 3221224560 3221223076 134543932 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 5888 5017 1116 68 0 5820 0
[pid=21670] vsize: 23552
Current children cumulated CPU time (s) 49.3
Current children cumulated vsize (Kb) 23552

[startup+60.0043 s]
Raw data (loadavg): 0.96 0.95 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 5199 0 0 0 5871 49 0 0 25 0 1 0 1840198606 24522752 5110 4294967295 134512640 134736556 3221224560 3221223068 134540103 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 5987 5110 1116 68 0 5919 0
[pid=21670] vsize: 23948
Current children cumulated CPU time (s) 59.2
Current children cumulated vsize (Kb) 23948

[startup+70.0049 s]
Raw data (loadavg): 0.97 0.96 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 5311 0 0 0 6859 54 0 0 25 0 1 0 1840198606 25063424 5222 4294967295 134512640 134736556 3221224560 3221223072 134543195 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 6119 5222 1116 68 0 6051 0
[pid=21670] vsize: 24476
Current children cumulated CPU time (s) 69.13
Current children cumulated vsize (Kb) 24476

[startup+80.0055 s]
Raw data (loadavg): 0.97 0.96 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 5423 0 0 0 7843 59 0 0 25 0 1 0 1840198606 25468928 5334 4294967295 134512640 134736556 3221224560 3221223104 134540200 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 6218 5334 1116 68 0 6150 0
[pid=21670] vsize: 24872
Current children cumulated CPU time (s) 79.02
Current children cumulated vsize (Kb) 24872

[startup+90.0061 s]
Raw data (loadavg): 0.98 0.96 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 5570 0 0 0 8829 64 0 0 25 0 1 0 1840198606 26009600 5481 4294967295 134512640 134736556 3221224560 3221223136 134543861 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 6350 5481 1116 68 0 6282 0
[pid=21670] vsize: 25400
Current children cumulated CPU time (s) 88.93
Current children cumulated vsize (Kb) 25400

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/56 21670
Raw data (/proc/21670/stat): 21670 (bsolo) R 21669 21670 19316 0 -1 0 5690 0 0 0 9816 70 0 0 25 0 1 0 1840198606 26546176 5601 4294967295 134512640 134736556 3221224560 3221223248 134536465 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/21670/statm): 6481 5601 1116 68 0 6413 0
[pid=21670] vsize: 25924
Current children cumulated CPU time (s) 98.86
Current children cumulated vsize (Kb) 25924
One traced child (pid=21670) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 105.67
CPU time (s): 104.497
CPU user time (s): 103.773
CPU system time (s): 0.723889
CPU usage (%): 98.8902
Max. virtual memory (cumulated for all children) (Kb): 25924

Verifier Data

ERROR: no interpretation found !