Trace number 2669126

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
PB/CT 0.1UNSAT 2.35164 2.35171

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-22s.smv.opb
MD5SUM3fb2d144eb047d6ea626acdee43b1069
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.152976
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables5985
Total number of constraints15365
Number of constraints which are clauses14013
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1352
Minimum length of a constraint1
Maximum length of a constraint15
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 165
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 546
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.19/0.23	c constraints 1352/0 clauses 14005/0 units 5
0.19/0.23	c vars 5985
1.69/1.78	c 1.64475 118.555 58 1231
2.29/2.34	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2669126-1276435495/watcher-2669126-1276435495 -o /tmp/evaluation-result-2669126-1276435495/solver-2669126-1276435495 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669126-1276435495.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23740
/proc/meminfo: memFree=1821720/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=2208 CPUtime=0
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 255 0 0 0 0 0 0 0 19 0 1 0 19135902 2260992 178 1992294400 134512640 136485738 4294084752 18446744073709551615 134519128 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23740/statm: 552 178 156 482 0 68 0

[startup+0.0762211 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23740
/proc/meminfo: memFree=1821720/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=2340 CPUtime=0.07
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 309 0 0 0 7 0 0 0 19 0 1 0 19135902 2396160 232 1992294400 134512640 136485738 4294084752 18446744073709551615 135178866 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23740/statm: 585 232 156 482 0 101 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2340

[startup+0.101223 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23740
/proc/meminfo: memFree=1821720/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=2472 CPUtime=0.09
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 331 0 0 0 9 0 0 0 20 0 1 0 19135902 2531328 254 1992294400 134512640 136485738 4294084752 18446744073709551615 135350462 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23740/statm: 618 254 156 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.301244 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23740
/proc/meminfo: memFree=1821720/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=13416 CPUtime=0.29
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 2987 0 0 0 28 1 0 0 20 0 1 0 19135902 13737984 2910 1992294400 134512640 136485738 4294084752 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23740/statm: 3354 2911 191 482 0 2870 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13416

[startup+0.701284 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23740
/proc/meminfo: memFree=1821720/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=43700 CPUtime=0.69
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 10974 0 0 0 63 6 0 0 21 0 1 0 19135902 44748800 10418 1992294400 134512640 136485738 4294084752 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23740/statm: 10925 10418 196 482 0 10441 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 43700

[startup+1.50136 s]
/proc/loadavg: 0.90 0.97 0.99 2/107 23741
/proc/meminfo: memFree=1764052/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=112760 CPUtime=1.49
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 29224 0 0 0 136 13 0 0 23 0 1 0 19135902 115466240 27170 1992294400 134512640 136485738 4294084752 18446744073709551615 134663842 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23740/statm: 28190 27170 208 482 0 27706 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 112760

Solver just ended. Dumping a history of the last processes samples

[startup+1.9014 s]
/proc/loadavg: 0.90 0.97 0.99 2/107 23741
/proc/meminfo: memFree=1764052/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=116580 CPUtime=1.89
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 31267 0 0 0 176 13 0 0 25 0 1 0 19135902 119377920 28193 1992294400 134512640 136485738 4294084752 18446744073709551615 135839911 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23740/statm: 29145 28193 245 482 0 28661 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 116580

[startup+2.30144 s]
/proc/loadavg: 0.90 0.97 0.99 2/107 23741
/proc/meminfo: memFree=1711972/2059040 swapFree=4134520/4192956
[pid=23740] ppid=23738 vsize=106796 CPUtime=2.29
/proc/23740/stat : 23740 (pbct) R 23738 23740 22114 0 -1 4202496 31267 0 0 0 216 13 0 0 25 0 1 0 19135902 109359104 26334 1992294400 134512640 136485738 4294084752 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23740/statm: 26699 26334 245 482 0 26215 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 106796

Child status: 0
Real time (s): 2.35171
CPU time (s): 2.35164
CPU user time (s): 2.20167
CPU system time (s): 0.149977
CPU usage (%): 99.9972
Max. virtual memory (cumulated for all children) (KiB): 118636

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.20167
system time used= 0.149977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 31268
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1
involuntary context switches= 17

runsolver used 0.004999 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node017 at 2010-06-13 15:24:55
IDJOB=2669126
IDBENCH=1477
IDSOLVER=1170
FILE ID=node017/2669126-1276435495
PBS_JOBID= 11173309
Free space on /tmp= 62368 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-22s.smv.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669126-1276435495/watcher-2669126-1276435495 -o /tmp/evaluation-result-2669126-1276435495/solver-2669126-1276435495 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669126-1276435495.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 3fb2d144eb047d6ea626acdee43b1069
RANDOM SEED=1701759234

node017.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.201
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.40
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.201
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1822240 kB
Buffers:         35140 kB
Cached:         124044 kB
SwapCached:      11708 kB
Active:          97184 kB
Inactive:        76020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822240 kB
SwapTotal:     4192956 kB
SwapFree:      4134520 kB
Dirty:            2696 kB
Writeback:           0 kB
AnonPages:       12344 kB
Mapped:           9160 kB
Slab:            41952 kB
PageTables:       3920 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183348 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62368 MiB
End job on node017 at 2010-06-13 15:24:57